Th350 Sprag Upgrade


The 3:08 is another perfect ratio for the street with a 1:1 transmission. TH350 cases are no longer plentiful nor as cheap as …. 16 springs & 16 rollers. Intended for use as a case-saver, our A74761DAC is a new twist on a resurrected idea. Transparts Warehouse carries a full line of automatic transmission repair parts at wholesale costs. Here is Gearstar Performance's heavy-duty third clutch drum with extra-wide heavy-duty 34-element sprag assembly and 300M hardened race (left) next to the stock drum with spring and roller assembly (right). T350 transmissions require a like-kind core supplied or a …. PERFORMANCE TH350 TRANSMISSION (Manual) A hardened intermediate clutch race and heavy duty roller sprag are then installed on the direct clutch drum and it is placed in the case. Apr 07, 2014 · This intermediate sprag, as Nichols points out, has to stop direct drum rotation from the engine speed down to zero RPM after the 1-2 change, thus making it the most stressed component in a TH400. See full list on jakesperformance. TH350 Drum 36 Element Sprag 350-327900 TH-350 direct drum heat treated outer race 36 element sprag wide bushing and spiral lock. weak points are, Intermediate sprag/Roller clutch; Intermediate Race, you can buy a Hardened Race that works with OEM style Roller Clutch or a new drum with 36 element sprag for High HP motors. **Upgrade** Low Sprag / Roller Clutch Inner Race & Bearing Set. The Hughes Turbo 400 forward drum, rear planet, and intermediate shaft give. Polyurethane Turbo 350 400 700r4 Transmission Mount Red Chevy Gm 2wd Automatic. ATI performance products 355682 327$. 60 BTE TH350 Reverse Friction …. I assume the use the 700 sprag? Jan. Millions of GM cars and trucks have been built with Turbo 350 automatic transmissions. See all 31 photos. Either application requires replacement when the case lugs are worn. Rebuilt hi performance 700r4. Either application requires replacement when the case lugs are worn. &; This race is a must in any performance application. T350 transmissions require a like-kind core supplied or a …. The TH350 transmission is one of the most popular GM automatics for high-performance applications. It was designed with a three-element turbine torque converter mated to a epicyclic planetary geartrain, thus delivering three forward speeds plus reverse. TH350 TH350C Transmission Direct Clutch Drum with Sprag. here is a quick break down on some Th350 parts That I use and why. Built with a thicker hardened outer race, extra wide …. Used in TH350 1969-86, 700R4 1982-86, 4T60E 1991-95. Give a little upgrade to your high-energy clutches from 6 clutches to a 14 clutch Z-pak for an additional $150. The level 3 TH350 is good for motors up to 600 horse power. We offer this trans in several forms for trucks, high performance street/strip cars and street rods. This later version had an electronic lock-up converter to increase fuel-efficiency at cruising speeds. The level 3 TH350 comes with Alto Red Eagle clutches and Kolene steels plus a much larger 36 element sprag and the #8 torque converter. Turbo 350 TH350C Intermediate Sprag Roller Clutch 1969-1986. TCI auto 327900 358$. The TH350-C lockup version can be identified by an electrical plug on the left side of the transmission. Reybestos performance clutch kit with 3-4 Z pac. At 200 psi. A TH350 rebuild with all new frictions, steels, bushings, thrust washers, 5 clutch direct upgrade, valve body mods for firmer shifts, new intermediate roller clutch …. Just need to bend the cooler lines a little bit. GM Chevy Chevrolet TH350 3rd Direct Sprag outer RACE Turbo 350 350C. Product Details. 50 and tested beyond its rated 800rwhp capability, so. Also get a hardened intermediate sprag race, and maybe upgrade the sprag. 99! Adapt-A-Case Heavy Duty Case Saver TH350 700R4 4L60E 4L65E Automatic Transmission A74761DAC. ( 6 ) Part Number: TCI-327900. For unrivaled GM TH350 and TH350C reliability at any power level, Sonnax now offers a heavy duty intermediate overrun clutch outer race with twice the torque capacity of any OE or other aftermarket part. 1972 GMC Submarine. Transparts Warehouse carries a full line of automatic transmission repair parts at wholesale costs. High Peformance Sprag Race , Heavy Duty , Fits All TH350 Automatic Transmission Models. It's a revolutionary new transmission upgrade that brings an end to worrying about chronic race failure in today's performance vehicles. Millions of GM cars and trucks have been built with Turbo 350 automatic transmissions. In addition, dual bushings are installed in the rear sun gear to handle the extra weight of the beast sun shell. How do you figure? You can buy a 850+ hp T350 with brake for approx. TH350 Mega Monster In A Box. Converter is a TCI street fighter (~3200 RPM flash). The relatively inexpensive 34 element sprag for the TH-400 will not fit a TH-350. when compared to OEM components. The intermediate overrun band is installed, followed by 3 heavy duty high energy intermediate frictions. BTE never hear of them but 373$. Product Description. The level 3 TH350 is good for motors up to 600 horse power. 5 Inch Race Converter - Furnace Brazed, Steel Stator 10 Blade , Spragless. The 4L60E is a computer controlled transmission. This is the strongest and most reliable direct drum of its kind. And that means you don't have to upgrade to expensive drum kits that change the design over to a sprag, and you have a reliable, affordable, drop-in item that can really make this area more durable, so you don't have to worry about it, and you can put some power behind these transmissions with great reliability. There always comes a time when the old transmission shows signs of wear. This rebuilt TH350 drum features a high performance sprag and race setup that effectively doubles the strength of the assembly. Roller length 4. Low reverse sprag, roller clutch center support. Trusted Specialists GM engine & parts specialists. 20 BTE TH350 Direct Steel Clutches. 1990 Z28 Camaro transmission. Turbo 350 TH350C Intermediate Sprag Roller Clutch 1969-1986. This Kit Will Fit These GM Automatic Transmissions; 4L80E 1991-ON. This par-ticular TH350 build is going behind a pretty powerful engine, so I will upgrade a few areas during the rebuild. TCI Auto 373600 - TCI Sprags and Roller Clutch Kits. Ships free, or upgrade to flat rate expedited 1-3 day shipping for $3. Although not quite the stout heavy-duty performer as its big brother, the Turbo 400, the Turbo 350 transmission is a fine, durable, capable, and when modified, stout performer in its own right. Th350, 2-speed powerglide automatic, super t10, muncie m20 m21 m22, saginaw, & t5 manual transmission speedometer gear 18t brown fits gm (3987918)(8g-18a) TPD PRO. I have this set up in my th350, using 700 sprag, 1st gear, Allison torque converter behind lt1, mated to atlas 3. The TH350 transmission is one of the most popular GM automatics for high-performance applications. I'd keep the th350 and shoot for better rear end gearing. ATI, TSI, or any of the big names can do it for you. that smooth inner sprag race as well. I prefer to use Teflon sealing rings everywhere as well. COA-12505B - DURA-BOND HI-PERFORMANCE SEAMLESS FRONT PUMP BUSHING (PG, TH350, TH400) $3. You will often start twisting up some input or output shafts before you have any real internal damage. February 14, 2015, 09:16 PM. * This drum utilizes one of the LARGEST Intermediate Sprags available today. TH350 High Performance Drum with Sprag Product #: 327900 * A Re-Furbished Drum that has had a Hardened Inner and Outer Race added to it. CALL 800-708-0087, Office Hours are Monday-Friday, 9:00am-6:00pm EST. Hughes Performance Sprag Assembly - TH350, Intermediate, 34 Element - for HP3279 Drum $285. Th350, 2-speed powerglide automatic, super t10, muncie m20 m21 m22, saginaw, & t5 manual transmission speedometer gear 18t brown fits gm (3987918)(8g-18a) TPD PRO. 010" clearance, Replace 4 of them with 700R4/4L60E FrictionsShould yield "around". The Turbo 400 transmission, known officially as the Turbo-Hydramatic and commonly referred to as simply the TH400, was part of a family of automatic transmissions developed and produced by GM. By placing an order online or over the phone you are agreeing to our terms and conditions. from United States. $1500 and up. ATI performance products 355682 327$. 350 th350 transmission intermediate sprag outer race heavy duty aftermarket fits '69-'86 Rating Required Select Rating 1 star (worst) 2 stars 3 stars (average) 4 stars …. 50 and tested beyond its rated 800rwhp capability, so. Roll down the window and use your ears to listen to the sounds that are coming up from the transmission. TH350 Rebuild Kit. Add to Cart. The sprag type element is generally considered stronger, IMO mostly because it has more elements …. The 3:08 is another perfect ratio for the street with a 1:1 transmission. Next upgrade would be a HD sun shell. TSR Racing Products TH350 Direct Drum with 36 Element Sprag Precision machined with a hardened outer race, 36 element sprag, and new wide bushing. However, its 700R4 replacement. Help prevent failures with these components and compete with increased confidence. SKU 521300. Fits C-6 Automatic Transmissions from 1968 to 1996 --- All makes and models. Buy It Now. When it is time for a GM Turbo 350 rebuild kit, whether for a muscle car restoration, high performance street vehicle transmission repair, street rod, hot rod, or all out race Turbo Hydramatic 350, we have the transmission rebuild kit you need for the job. 20 BTE TH350 Direct Steel Clutches. Perfect upgrade for any hotrod , classic or performance vehicle. Polyurethane Turbo 350 400 700r4 Transmission Mount Red Chevy Gm 2wd Automatic. Refurbished. The Later 4L60-E has a six bolt "hex" rear bolt pattern and a removable bellhousing. Level 3 cost $2754. 8 out of 5 stars. This Kit Comes With, New OEM Updated Piston Spring Retainer 2001-on Will Retro Back To 1991. They both have identical or nearly identical gears, except for the addition of a fourth "overdrive" gear in the 4L80E that allows for better highway fuel mileage due to lower engine speeds. I have one guy running a 496" in a street car, and has gone well into the 10's with one. I believe symptoms for both are that 3rd/4th are only available after the vehicle is moving, must start out in 1 st/2nd. The TH350 gears are from First to Reverse: 2. This arrangement maintains alignment while providing the highest possible dynamic load capacity. This is critical upgrade for high performance applications. TH350 dragging in low gear. The TH350-C was the lockup torque converter version introduced in the late 1979 model year, and was produced through 1984. Jun 17, 2021 · Would it be worth tearing into it to steal any upgrade parts to put in my TH350? I've heard about using a center support from a 700r4 in a TH350 for the wider sprag clutch, are there any other parts worth swapping or would I be better of just selling it as a whole unit and buying new upgrade parts?. Going right to the direct clutch drum, you should be seeking a drum with a smooth i nner sprag race to allow an upgrade to the 34-element "dogbone" style of sprag (above). This is a new heavy duty upgraded intermediate sprag outer race for GM's Turbo 350 and 350C automatic transmissions manufactured from 1969 to 1986. 1990 Z28 Camaro transmission. BS'er formally known as Rebeldryver. This kit includes all the rebuild components we use to build our Stage 1 TH350 units. ( 6 ) Part Number: TCI-327900. The TH350 transmission is one of the most popular GM automatics for high-performance applications. When it is time for a GM Turbo 350 rebuild kit, whether for a muscle car restoration, high performance street vehicle transmission repair, street rod, hot rod, or all out race Turbo Hydramatic 350, we have the transmission rebuild kit you need for the job. This rebuilt TH350 drum features a high performance sprag and race setup that effectively doubles the strength of the assembly. On sale $2,295. Later versions use a pinned flare and o-ring design for these fluid circuits. February 14, 2015, 09:16 PM. BTE never hear of them but 373$. ) they recommended the following for a 450 HP rated TH350: rebuilt front pump upgraded intermediate sprag heavy. There always comes a time when the old transmission shows signs of wear. The sprag—or one way clutch—is extremely important in the GM TH350 and TH400 because they carry an upshifting torque load. Our Process: All of our transmissions are fully remanufactured and are held to the highest and strictest industry standards. This product may require vehicle validation (s) for proper fitment. * It boasts a HUGE 36 Element Sprag Assembly for all that you can throw at it! TH350 Intermediate Sprag Outer Race (Hardened). BS'er formally known as Rebeldryver. 1 offer from $19. Automatic Transmission Direct Drum, Iron, GM …. &; This race is a must in any performance application. 1,901 Posts. This kit includes all the rebuild components we use to build our Stage 1 TH350 units. We're here for you, whether you are rebuilding or upgrading your transmission in your garage or if you're maintaining a local transmission repair shop. great upgrade but at near $300 a pop, may not be worth the cost when by the time you buy it, install it, freshen the tran, you could have a TH400 with the upgraded assembly for not much more and have room to grow. Wish List Compare. COA-12523 - EXTENSION HOUSING BUSHING (PG, TH350, 700R4) $2. You can now save your case and improve. The overdrive th400 and th350 transmissions have them too. The aftermarket offers a hardened outer intermediate sprag race as an upgrade for the TH350 transmissions. Hughes can upgrade your Turbo 400 with a steel billet input shaft for greater torque capacity. TH350 Iron Drum/HD Sprag Assembly. Master Rebuild Kit with Borg Warner Tan OEM style …. Nov 16, 2009 · I'm about to have my TH350 redone. No Image Available. This is a modification that makes the transmission shift crisply and certainly is necessary for a TH350 to live behind a high HP motor. This custom direct drum and mechanical diode assembly eliminates intermediate roller clutch and otter race failures common with the TH350 transmission. after that any competent builder can make it near bullet proof for cheap. With regards to the sprag, for the most part, very few have the 400 HD sprag, it's usually a $500 upgrade. Top Rated Seller Top Rated Seller. TCI auto 327900 358$. Used in TH350 1969-86, 700R4 1982-86, 4T60E 1991-95. OE Part No. When it is time for a GM Turbo 350 rebuild kit, whether for a muscle car restoration, high performance street vehicle transmission repair, street rod, hot rod, or all out race Turbo Hydramatic 350, we have the transmission rebuild kit you need for the job. My tranny went KABOOM and cost me a tow bill on Saturday. The 3:08 is another perfect ratio for the street with a 1:1 transmission. &; This race is a must in any performance application. #4 · Aug 15, 2009. They both have identical or nearly identical gears, except for the addition of a fourth "overdrive" gear in the 4L80E that allows for better highway fuel mileage due to lower engine speeds. P/G's are there for backup! TH350 are easy to overhaul, reinforce the intermediate sprag as Steve Oldani suggests, I broke mine 5 times in two years. If you have a BOP or universal bell it is a T350 direct fit. Built with a thicker hardened outer race, extra wide …. TH350 SS Mega Monster In A Box. The key distinction of the 700R4 / 4L60 / Early 4L60-E (from the Later 4L60-E) is the four bolt rear output or tailhousing / adapter pattern. Oct 21, 2010. Wish List Compare. The sprag type element is generally considered stronger, IMO mostly because it has more elements …. The most common problem with these is the 3-4 clutch burn up. or the one that is described as a mecahnical diode, for much cheaper just over 250$. Intended for use as a case-saver, our A74761DAC is a new twist on a resurrected idea. The TH350 transmission is one of the most popular GM automatics for high-performance applications. ) they recommended the following for a 450 HP rated TH350: rebuilt front pump upgraded intermediate sprag heavy. This is a modification that makes the transmission shift crisply and certainly is necessary for a TH350 to live behind a high HP motor. A TH350 rebuild with all new frictions, steels, bushings, thrust washers, 5 clutch direct upgrade, valve body mods for firmer shifts, new intermediate roller clutch …. Hey guys, I was just curious if any of you have ever broken a standard sprag and drum. My tranny went KABOOM and cost me a tow bill on Saturday. If you have a BOP or universal bell it is a T350 direct fit. weak points are, Intermediate sprag/Roller clutch; Intermediate Race, you can buy a Hardened Race that works with OEM style Roller Clutch or a new drum with 36 element sprag for High HP motors. The intermediate sprag is dead. Buy It Now. Buy Turbo 350 TH350 High Performance Hardened Intermediate Sprag Ford 4R100 5R110W Torque Converter Drive-Plate After-Market Upgrade. Removal of the wave plate or building the forward clutch stack tight is a common performance upgrade many rebuilders do automatically. ( 6 ) Part Number: TCI-327900. 34! 47880 TH350 700R4 Transmission low roller clutch, 4T60E 1-2 roller cutch. Torque Converters The torque converter provides the driving force for the transmission. The 34-element units (at right) are 110-per-. 99! Adapt-A-Case Heavy Duty Case Saver TH350 700R4 4L60E 4L65E Automatic Transmission A74761DAC. The TH350-C lockup version can be identified by an electrical plug on the left side of the transmission. The key distinction of the 700R4 / 4L60 / Early 4L60-E (from the Later 4L60-E) is the four bolt rear output or tailhousing / adapter pattern. This is found on the outside of the direct drum, right behind the pump. CALL 800-708-0087, Office Hours are Monday-Friday, 9:00am-6:00pm EST. He replaced the stock forward drum/input shaft with an ATI hardened input shaft/drum combo, replaced the stock direct drum piston with a thinner one from Coan to be able to. BS'er formally known as Rebeldryver. As it is usually the first part to go in a TH350 transmission, I find that it is a necessary upgrade for any performance oriented engine. Repair and reuse worn Cases On The Below Units:. In this case, the upgrade can be made possible with a sprag-type intermediate overrun clutch, a late 700R4 low roller clutch center support, a 300M input shaft, premium. It was designed with a three-element turbine torque converter mated to a epicyclic planetary geartrain, thus delivering three forward speeds plus reverse. How do you figure? You can buy a 850+ hp T350 with brake for approx. 1 offer from $19. The TH350 (Turbo-Hydramatic 350) and TH700R4 (Turbo-Hydramatic 700-R4) can be thought of as relatives of a sort: uncle and nephew, if not father and son. Part Number: …. When it is time for a GM Turbo 350 rebuild kit, whether for a muscle car restoration, high performance street vehicle transmission repair, street rod, hot rod, or all out race Turbo Hydramatic 350, we have the transmission rebuild kit you need for the job. You save $3. Sonnax Transmission parts for GM 350 applications. You will often start twisting up some input or output shafts before you have any real internal damage. Our Stage 2 TH350 includes all the features of the Street model plus a 36 element sprag and drum upgrade, special retaining …. Topic: building a TH350 to handle a 406 w/ alot HP: DooSPX I normally have no issues with them up to about that level of power with only the addition of a 36-element sprag/drum/Spiroloc and decent frictions and a good rebuild. The 4L80E’s ratios from First to Reverse are: 2. I assume the use the 700 sprag? Jan. Turbo 350 TH350C Intermediate Sprag Roller Clutch 1969-1986. What this means to you is the fact you are getting a quality product that meets or exceeds the OEM standards, not just a. You can now save your case and improve. The assembly is even stronger than the 36 element sprag upgrade for this transmission. Bte Th350 350 Turbo Heavy Duty Drum With Sprag Bte353900 Free Shipping. Reybestos performance clutch kit with 3-4 Z pac. High Performance International. Used in TH350 1969-86, 700R4 1982-86, 4T60E 1991-95. Turbo 350 Stage 2 Transmission 6" Short Shaft Free Torque Converter Included 650 HP. This kit includes all the rebuild components we use to build our Stage 1 TH350 units. After that it is just basic HD performance rebuild parts including the increased pump pressure spring and shift improver kit, new low roller clutch kit, improved clutches or added clutches, etc. SKU 323100. BTE TH350 Heavy Duty Drum w/ Sprag. ATI, TSI, or any of the big names can do it for you. All transmissions come with a free PATC shirt. View as Grid List. Watch; A S P B E V 4 Y O N I S C O M R P T E D. 1,901 Posts. Not common in a $1K transmission. Number of Element: 36. This later version had an electronic lock-up converter to increase fuel-efficiency at cruising speeds. This transmission has been tested thoroughly on a daily driven car that also does a substantial amount of track racing. MONSTER'S Website: http://bit. TH350 • 700R4 • 4L60/65E. It takes more abuse than the stock outer race, but can still fail in a high-torque application if it is used with the stock roller clutch assembly. TCI auto 327900 358$. Either application requires replacement when the case lugs are worn. 350 th350 transmission intermediate sprag outer race heavy duty aftermarket fits '69-'86 TRANSTAR 350 TH350, POWERGLIDE, MUNCIE, SAGINAW TRANSMISSION SPEEDOMETER …. TH400 Core. All TH350's and ~71-up Th400's have the roller clutch style setup. Borgwarner hi energy band. 36-element sprag assembly. This rebuilt TH350 drum features a high performance sprag and race setup that effectively doubles the strength of the assembly. Roll down the window and use your ears to listen to the sounds that are coming up from the transmission. The aftermarket offers a hardened outer intermediate sprag race as an upgrade for the TH350 transmissions. See all 14 photos. Low reverse sprag, roller clutch center support. It's a revolutionary new transmission upgrade that brings an end to worrying about chronic race failure in today's performance vehicles. or the one that is described as a mecahnical diode, for much cheaper just over 250$. 34! 47880 TH350 700R4 Transmission low roller clutch, 4T60E 1-2 roller cutch. 1/4" NPT male to -6 AN male line fittings. TCI Sprag and Drum Assemblies. February 14, 2015, 09:16 PM. Also get a hardened intermediate sprag race, and maybe upgrade the sprag. Automatic Transmission Repair Parts. TSR Racing Products TH350 Direct Drum with 36 Element Sprag Precision machined with a hardened outer race, 36 element sprag, and new wide bushing. when compared to OEM components. With regards to the sprag, for the most part, very few have the 400 HD sprag, it's usually a $500 upgrade. 5 Inch Race Converter - Furnace Brazed, Steel Stator 10 Blade , Spragless. This is the main weak point of the 350. Jul 02, 2015 · The TH350 gears are from First to Reverse: 2. Mar 25, 2021 · Our Stage 2 TH350 includes all the features of the Street model plus a 36 element sprag and drum upgrade, special retaining ring on the sprag, and a deep aluminum pan standard. Jun 17, 2021 · Would it be worth tearing into it to steal any upgrade parts to put in my TH350? I've heard about using a center support from a 700r4 in a TH350 for the wider sprag clutch, are there any other parts worth swapping or would I be better of just selling it as a whole unit and buying new upgrade parts?. Give a little upgrade to your high-energy clutches from 6 clutches to a 14 clutch Z-pak for an additional $150. Refurbished. Th350 Turbo 350 Low Reverse Sprag Assembly Upgrade. Request a Quote Heavy duty intermediate sprag Heavy duty overdrive sprag Teflon bushings Seals and lip seals Molded pistons TH350 Core Charge $200. CALL 800-708-0087, Office Hours are Monday-Friday, 9:00am-6:00pm EST. At 200 psi. Oct 21, 2010. BS'er formally known as Rebeldryver. general motors turbo hydramatic 350,TH350,turbo 350, help you build,turbo350,thm350. It has much bigger rollers. 350 th350 transmission intermediate sprag outer race heavy duty aftermarket fits '69-'86 TRANSTAR 350 TH350, POWERGLIDE, MUNCIE, SAGINAW TRANSMISSION SPEEDOMETER …. See if you can get the ATSG book for the TH350 from your local parts house. TCI auto 327900 358$. Roll down the window and use your ears to listen to the sounds that are coming up from the transmission. Please view photos. TH350 Rebuild Kit. TH350 TH350C Transmission Direct Clutch Drum with Sprag. Turbo 350 TH350C Intermediate Sprag Roller Clutch 1969-1986. HP upgrade - ADC-A74761D Adapt-A-Case Heavy Duty Case Saver TH350 700R4 4L60E 4L65E Automatic Transmission A74761DAC; Ships free, or upgrade to flat rate expedited 1-3 day shipping for $3. I've broken TWO Strange built 9" rear ends (one axles let go second ripped teeth off the Richmond ring gear) , but not a hint of issues from the trans. of clamping force, an increase of 15. I talked with two local tranny rebuilders today. The installation of this updated pressure regulator spring will raise maximum line pressure to approximately 195 psi, resulting in …. Hughes can upgrade your Turbo 400 with a steel billet input shaft for greater torque capacity. or the one that is …. Perfect upgrade for any hotrod , classic or performance vehicle. Using tci heavy clutches and art carr rev man valve body with compression braking in first and second gear. View as Grid List. The 4L80E’s ratios from First to Reverse are: 2. A TH350 can be upgraded using aftermarket drum, 36 element sprag assemblies. Th350 Turbo 350 Low Reverse Sprag Assembly Upgrade. MONSTER'S Website: http://bit. ATI, TSI, or any of the big names can do it for you. Buy Turbo 350 TH350 High Performance Hardened Intermediate Sprag Ford 4R100 5R110W Torque Converter Drive-Plate After-Market Upgrade. COA-12523 - EXTENSION HOUSING BUSHING (PG, TH350, 700R4) $2. Hughes Performance Sprag Assembly - TH350, Intermediate, 34 Element - for HP3279 Drum $285. when compared to OEM components. &; This race is a must in any performance application. The installation of this updated pressure regulator spring will raise maximum line pressure to approximately 195 psi, resulting in …. 5 Inch Race Converter - Furnace Brazed, Steel Stator 10 Blade , Spragless. FOR SALE! TH350 Turbo 350 Low Reverse Sprag Assembly. TH350 Sprag upgrades. All transmissions come with a free PATC shirt. Topic: building a TH350 to handle a 406 w/ alot HP: DooSPX I normally have no issues with them up to about that level of power with only the addition of a 36-element sprag/drum/Spiroloc and decent frictions and a good rebuild. * It boasts a HUGE 36 Element Sprag Assembly for all that you can throw at it! TH350 Intermediate Sprag Outer Race (Hardened). A cheap upgrade is the TCI heat reated intermediate sprag outer race and a new sprag from Delco. Request a Quote Heavy duty intermediate sprag Heavy duty overdrive sprag Teflon bushings Seals and lip seals Molded pistons TH350 Core Charge $200. I've broken TWO Strange built 9" rear ends (one axles let go second ripped teeth off the Richmond ring gear) , but not a hint of issues from the trans. Enter the vehicle and engage the ignition using the key. You will often start twisting up some input or output shafts before you have any real internal damage. 5 out of 5 stars. See all 14 photos. A revolutionary upgrade for GM TH350 and TH350C performance vehicles, Sonnax heavy duty intermediate overrun clutch outer race 35723HD-02 delivers twice the torque capacity of any OE or other aftermarket race for unrivaled reliability at any power level. This trans must use a computer to function. Jun 17, 2021 · Would it be worth tearing into it to steal any upgrade parts to put in my TH350? I've heard about using a center support from a 700r4 in a TH350 for the wider sprag clutch, are there any other parts worth swapping or would I be better of just selling it as a whole unit and buying new upgrade parts?. BTE never hear of them but 373$. TH350 1969-1979 / TH350C 1980-1986. MONSTER'S Website: http://bit. Enter the vehicle and engage the ignition using the key. This is a new heavy duty upgraded intermediate sprag outer race for GM's Turbo 350 and 350C automatic transmissions manufactured from 1969 to 1986. Please view photos. It takes more abuse than the stock outer race, but can still fail in a high-torque application if it is used with the stock roller clutch assembly. The 4L60 is a 700R4. Borgwarner hi energy band. Stage 2 TH350 - 750 HP/TQ capable. Either application requires replacement when the case lugs are worn. It's a revolutionary new transmission upgrade that brings an end to worrying about chronic race failure in today's performance vehicles. TH350 cases are no longer plentiful nor as cheap as …. Turbo 350 TH350C Intermediate Sprag Roller Clutch 1969-1986. C-4 Trans-Brake Solenoid. You save $3. If you have a 4L60E to retrofit to a non computerized application we can support you with our COMPUSHIFT transmission computer system, priced at $1279. In addition to a good standard rebuild (clutches, bushings, seals, etc. New Car Dealers, Commercial Customers, 4 Wheel. Apr 07, 2014 · This intermediate sprag, as Nichols points out, has to stop direct drum rotation from the engine speed down to zero RPM after the 1-2 change, thus making it the most stressed component in a TH400. The most expensive part is the 36 element sprag. TURBO 350 TH350 Transmission Performance Rebuild Kit Alto … 3 product ratings - TH350 Turbo 350 350C 250 Transmission. great upgrade but at near $300 a pop, may not be worth the cost when by the time you buy it, install it, freshen the tran, you could have a TH400 with the upgraded assembly for not much more and have room to grow. Removal of the wave plate or building the forward clutch stack tight is a common performance upgrade many rebuilders do automatically. Nov 10, 2016 · The Turbo 400 and 350 have a stator built into the converter that multiplies torque, the more resistance the more torque multiplication but up to a point. TH350 dragging in low gear. This tranny was working fine before the overhaul. Turbo 350 Stage 1 Transmission 6" Short Shaft Free Torque Converter Included 500 HP. Wish List Compare. Mar 25, 2021 · Our Stage 2 TH350 includes all the features of the Street model plus a 36 element sprag and drum upgrade, special retaining ring on the sprag, and a deep aluminum pan standard. PERFORMANCE TH350 TRANSMISSION (Manual) A hardened intermediate clutch race and heavy duty roller sprag are then installed on the direct clutch drum and it is placed in the case. Jul 28, 2021 · The TH350’s low rotating mass, gear ratios, and overall lightweight construction make it a great for light to moderate weight cars with power ranging from 350 to 800 horsepower. Number of Element: 36. You save $3. after that any competent builder can make it near bullet proof for cheap. This later version had an electronic lock-up converter to increase fuel-efficiency at cruising speeds. Be certain case is 1/4 NPT NOT 1/4 straight pipe! 960002. For unrivaled GM TH350 and TH350C reliability at any power level, Sonnax now offers a heavy duty intermediate overrun clutch outer race with twice the torque capacity of any OE or other aftermarket part. I assume the use the 700 sprag? Jan. If you have a BOP or universal bell it is a T350 direct fit. The low sprag (low roller clutch actually) causes first gear when only. ATI 2JZ to TH350/TH400 Transmission Adapter Kit The super strong unit features a special 22-element sprag with double cage construction to simultaneously control each sprag element. Buy Turbo 350 TH350 High Performance Hardened Intermediate Sprag Ford 4R100 5R110W Torque Converter Drive-Plate After-Market Upgrade. A must for any …. Watch; A S P B E V 4 Y O N I S C O M R P T E D. A TH350 rebuild with all new frictions, steels, bushings, thrust washers, 5 clutch direct upgrade, valve body mods for firmer shifts, new intermediate roller clutch …. SKU 323100. Buy Turbo 350 TH350 High Performance Hardened Intermediate Sprag - Race and Heavy Duty: Automotive - Amazon. TH350 Rebuild Kits. Wish List Compare. Also get a hardened intermediate sprag race, and maybe upgrade the sprag. or Best Offer. Laser cut from high tensile metal for strength and accurate fit. 1 offer from $79. A revolutionary upgrade for GM TH350 and TH350C performance vehicles, Sonnax heavy duty intermediate overrun clutch outer race 35723HD-02 delivers twice the torque capacity of any OE or other aftermarket race for unrivaled reliability at any power level. It has much bigger rollers. Top Rated Seller Top Rated Seller. BTE TH350 Heavy Duty Drum w/ Sprag. The TH350 transmission is one of the most popular GM automatics for high-performance applications. 7 out of 5 stars. You're currently reading. Turbo 350 Stage 2 Transmission 6" Short Shaft Free Torque Converter Included 650 HP. * This drum utilizes one of the LARGEST Intermediate Sprags available today. 50 BTE TH350 Forward Friction Clutches. ( 6 ) Part Number: TCI-327900. After that it is just basic HD performance rebuild parts including the increased pump pressure spring and shift improver kit, new low roller clutch kit, improved clutches or added clutches, etc. ATI, TSI, or any of the big names can do it for you. Year 1969-1986A hardened outer sprag race for the intermediate sprag or roller clutch. View Details. Th350 Turbo 350 Low Reverse Sprag Assembly Upgrade. This tranny was working fine before the overhaul. 1972 GMC Submarine. Low reverse sprag, roller clutch center support. SKU 521300. The overdrive th400 and th350 transmissions have them too. TH350 dragging in low gear. It was designed with a three-element turbine torque converter mated to a epicyclic planetary geartrain, thus delivering three forward speeds plus reverse. Turbo 350 TH350C Intermediate Sprag Roller Clutch 1969-1986. You save $3. I've broken TWO Strange built 9" rear ends (one axles let go second ripped teeth off the Richmond ring gear) , but not a hint of issues from the trans. Automatic Transmission Repair Parts. On sale $2,295. The most expensive part is the 36 element sprag. TH350 Low Drag Tailhousing. Stage 2 TH350 - 750 HP/TQ capable. I'd keep the th350 and shoot for better rear end gearing. We offer this trans in several forms for trucks, high performance street/strip cars and street rods. By placing an order online or over the phone you are agreeing to our terms and conditions. May 16, 2016 · Alternatively, You can run the Wave against a Friction, Then set the desired clearance by using TH350 & 700R4 Lo/Reverse Frictions. This is a modification that makes the transmission shift crisply and certainly is necessary for a TH350 to live behind a high HP motor. Help prevent failures with these components and compete with increased confidence. TH350 cases are no longer plentiful nor as cheap as they once were. Terms and Conditions. The TH-400 is a better choice once you push 700hp or use a transbrake. * This drum utilizes one of the LARGEST Intermediate Sprags available today. Also get a hardened intermediate sprag race, and maybe upgrade the sprag. High Performance International. The intermediate sprag is dead. Crankshaft Coalition Wiki -- hot rod tech articles. Wish List Compare. A TH350 can be upgraded using aftermarket drum, 36 element sprag assemblies. This arrangement maintains alignment while providing the highest possible dynamic load capacity. TH350 • 700R4 • 4L60/65E. Roller length 4. discuss please. A stock drum with spring and roller is only rated to 500 hp, while the upgraded Gearstar assembly is rated to 1,000-plus hp. View Details. (0) Reviews: Write first review. JEGS Case Saver and Center Support Upgrade Kit is intended to save your TH-350, 700R4, 4L60E, or 4L65E case plus upgrade the original design. The 4L80E is computer controlled, there is no non-computer version of it unfortunately. Drag Race TH350 Transmission Full Manual, Forward Shift (Small & Big Block Chevy) SKU 312000. TH350 Mega Monster In A Box. 5 Inch Race Converter - Furnace Brazed, Steel Stator 10 Blade , Spragless. Level 3 cost $2754. 050" clearance. 383 / Quadrajet / TH350 / Dubblah / D60 / 14FF / 42's on Stazworks / heavy foote / four eyez / forsaken. PERFORMANCE TH350 TRANSMISSION (Manual) A hardened intermediate clutch race and heavy duty roller sprag are then installed on the direct clutch drum and it is placed in the case. Wish List Compare. Hughes Performance Sprag Assembly - TH350, Intermediate, 34 Element - for HP3279 Drum $285. BTE TH350 Heavy Duty Drum w/ Sprag. ATI performance products 355682 327$. Very reasonably priced! Upgrades include. Mar 23, 2021 · For unrivaled GM TH350 and TH350C reliability at any power level, Sonnax now offers a heavy duty intermediate overrun clutch outer race with twice the torque capacity of any OE or other aftermarket part. Transgo stage 2 shift kit. The 3:08 is another perfect ratio for the street with a 1:1 transmission. TH350 High Performance Drum with Sprag Product #: 327900 * A Re-Furbished Drum that has had a Hardened Inner and Outer Race added to it. The overdrive th400 and th350 transmissions have them too. TCI auto 327900 358$. This Is A Must Update For 1991 Thru 2000 Transmissions With The Early Overdrive Drum , Planet And Sprag. Polyurethane Turbo 350 400 700r4 Transmission Mount Red Chevy Gm 2wd Automatic. Jul 28, 2021 · The TH350’s low rotating mass, gear ratios, and overall lightweight construction make it a great for light to moderate weight cars with power ranging from 350 to 800 horsepower. JEGS Case Saver and Center Support Upgrade Kit is intended to save your TH-350, 700R4, 4L60E, or 4L65E case plus upgrade the original design. 99! Hughes Performance TH350 Sprag Race Hardened Intermediate TH350C TH250 TH250C OPT Product Code: HUG-HP3289. View Details. A stock sprag, even with a hardened outer race upgrade will shatter and you lose 2nd gear instantly. The sprag type element is generally considered stronger, IMO mostly because it has more elements …. 010" clearance, Replace 4 of them with 700R4/4L60E FrictionsShould yield "around". Going right to the direct clutch drum, you should be seeking a drum with a smooth i nner sprag race to allow an upgrade to the 34-element "dogbone" style of sprag (above). Jan 18, 2016. For unrivaled GM TH350 and TH350C reliability at any power level, Sonnax now offers a heavy duty intermediate overrun clutch outer race with twice the torque capacity of any OE or other aftermarket part. TCI Auto 327900 - TCI Sprag and Drum Assemblies. 99 Estimated to ship direct from manufacturer on 09/15/21, pending manufacturer availability. This Kit Comes With, New OEM Updated Piston Spring Retainer 2001-on Will Retro Back To 1991. This custom direct drum and mechanical diode assembly eliminates intermediate roller clutch and otter race failures common with the TH350 transmission. Top Rated Seller Top Rated Seller. I have one guy running a 496" in a street car, and has gone well into the 10's with one. An excellent upgrade for all performance TH400 build ups. ly/1TeXSiUGive us a call at: 800-708-0087Curt goes over the differences between regular stock sprags and Monster Transmissions. Maximizer™ 4X4 TH350 Transmission Pre-'80 NP203/NP205 T-Case (Chevrolet) SKU 311200. Sonnax Transmission parts for GM 350 applications. The bolt in center support assembly is for a …. Request a Quote Heavy duty intermediate sprag Heavy duty overdrive sprag Teflon bushings Seals and lip seals Molded pistons TH350 Core Charge $200. You can buy stand alone computers to run those transmissions, but be prepared to pay at the very minimum $600 for one. The TH350 gears are from First to Reverse: 2. C-4 Trans-Brake Solenoid. Low reverse sprag, roller clutch center support. There are three main castings of the 700R. These are fairly inexpensive, and should help the TH350 take a good amount of power. or the one that is described as a mecahnical diode, for much cheaper just over 250$. Roller length 4. Our Technical Development and Motorsports division at Wholesale Automatic Transmissions has come under some heavy pressure from almost every type of motor vehicle enthusiast to expand our company to also include the following categories into our development range. Th350 Turbo 350 Low Reverse Sprag Assembly Upgrade. The 3:08 is another perfect ratio for the street with a 1:1 transmission. Converter is a TCI street fighter (~3200 RPM flash). 010" clearance, Replace 4 of them with 700R4/4L60E FrictionsShould yield "around". Buy Turbo 350 TH350 High Performance Hardened Intermediate Sprag - Race and Heavy Duty: Automotive - Amazon. Buy Turbo 350 TH350 High Performance Hardened Intermediate Sprag Ford 4R100 5R110W Torque Converter Drive-Plate After-Market Upgrade. A stock sprag, even with a hardened outer race upgrade will shatter and you lose 2nd gear instantly. There always comes a time when the old transmission shows signs of wear. 60 BTE TH350 Reverse Friction …. Dyno tested, and track proven. Give a little upgrade to your high-energy clutches from 6 clutches to a 14 clutch Z-pak for an additional $150. Reinforces center support - Heavy Duty fix for case wear. Engine is an 11:1 350 chev bored. At this time the center support and sprag (one way roller) are installed after being inspected for stress cracks and damage. That is not to say that the TH350 cannot be upgraded to be on the same level with entry-level powerglide and TH400s that have been enhanced with premium frictions and steels. TH350 Mega Monster In A Box. A TH350 can be upgraded using aftermarket drum, 36 element sprag assemblies. 4L85E 2001-ON. A TH350 rebuild with all new frictions, steels, bushings, thrust washers, 5 clutch direct upgrade, valve body mods for firmer shifts, new intermediate roller clutch …. As it is usually the first part to go in a TH350 transmission, I find that it is a necessary upgrade for any performance oriented engine. line pressure, this combination produces 3760 lbs. Just need to bend the cooler lines a little bit. The level 3 TH350 is good for motors up to 600 horse power. 60 BTE TH350 Reverse Friction …. All TH350's and ~71-up Th400's have the roller clutch style setup. or Best Offer. Upon an initial period of one to two minutes of warming up, you can begin to test-drive the vehicle to tell when the sprag in a torque converter is going bad. from United States. general motors turbo hydramatic 350,TH350,turbo 350, help you build,turbo350,thm350. They both have identical or nearly identical gears, except for the addition of a fourth "overdrive" gear in the 4L80E that allows for better highway fuel mileage due to lower engine speeds. A TH350 can be upgraded using aftermarket drum, 36 element sprag assemblies. In addition to a good standard rebuild (clutches, bushings, seals, etc. This rebuilt TH350 drum features a high performance sprag and race setup that effectively doubles the strength of the assembly. This Is A Must Update For 1991 Thru 2000 Transmissions With The Early Overdrive Drum , Planet And Sprag. The 4L80E's ratios from First to Reverse are: 2. Buy It Now. The overdrive th400 and th350 transmissions have them too. Our Technical Development and Motorsports division at Wholesale Automatic Transmissions has come under some heavy pressure from almost every type of motor vehicle enthusiast to expand our company to also include the following categories into our development range. TH350 dragging in low gear. &; This race is a must in any performance application. Either application requires replacement when the case lugs are worn. Automatic Transmission Repair Parts. Polyurethane Turbo 350 400 700r4 Transmission Mount Red Chevy Gm 2wd Automatic. OE Part No. K058 - TH700R4 200-4R TH350/C Transmission Adjustable Vacuum Switch KO58 Superior: 74008EA_DLX: 74008EA_DLX - GM 4L60E Rebuild Kit Shift Kit Sprag and MONSTER 1993-96: 74008EB, 74624AA, 74658C, K4L60E-L: 74008EB, 74624AA, 74658C, K4L60E-L - 4L60E Deluxe Rebuild Kit Shift Kit Sprag MONSTER 97-03: K013. It's a revolutionary new transmission upgrade that brings an end to worrying about chronic race failure in today's performance vehicles. 50 BTE TH350 Forward Friction Clutches. TCI Auto 373600 - TCI Sprags and Roller Clutch Kits. That is not to say that the TH350 cannot be upgraded to be on the same level with entry-level powerglide and TH400s that have been enhanced with premium frictions and steels. Thank you 194313144985. 097" TH350 frictions in there now & got. TH350 Low Drag Tailhousing. This Is A Must Update For 1991 Thru 2000 Transmissions With The Early Overdrive Drum , Planet And Sprag. This Kit Comes With, New OEM Updated Piston Spring Retainer 2001-on Will Retro Back To 1991. 350 th350 transmission intermediate sprag outer race heavy duty aftermarket fits '69-'86 TRANSTAR 350 TH350, POWERGLIDE, MUNCIE, SAGINAW TRANSMISSION SPEEDOMETER …. 20 BTE TH350 Direct Steel Clutches. The 4L80E’s ratios from First to Reverse are: 2. BS'er formally known as Rebeldryver. Our Technical Development and Motorsports division at Wholesale Automatic Transmissions has come under some heavy pressure from almost every type of motor vehicle enthusiast to expand our company to also include the following categories into our development range. Fits C-6 Automatic Transmissions from 1968 to 1996 --- All makes and models. 13 shipping estimate. Only things needed in a TH-350 are a good intermediate sprag race (or step up to a 36-element sprag/drum combo) and attention paid to details when building it. Tranny Assemblee Goo, Blue, Light Tack Lubricant, 16 oz. This kit includes all the rebuild components we use to build our Stage 1 TH350 units. Automatic Transmission Repair Parts. TH400 4X4 TRANSMISSION CHEVY PATTERN. 4L60E/700R4 Heavy Duty Center Support with Sprag. The key distinction of the 700R4 / 4L60 / Early 4L60-E (from the Later 4L60-E) is the four bolt rear output or tailhousing / adapter pattern. Please contact us to confirm correct vehicle fitment and usage. Our Technical Development and Motorsports division at Wholesale Automatic Transmissions has come under some heavy pressure from almost every type of motor vehicle enthusiast to expand our company to also include the following categories into our development range. * It boasts a HUGE 36 Element Sprag Assembly for all that you can throw at it! TH350 Intermediate Sprag Outer Race (Hardened). Automatic Transmission Direct Drum, Iron, GM …. The intermediate sprag is dead. Jul 02, 2015 · The TH350 gears are from First to Reverse: 2. I'll be moving to a 350 in a few months but for now, time to take care of the tranny. I have a '79 with a 305 almost stock. Gm Turbo 350 Th350 Th350c Automatic Transmission Original Factory 13 Pan Bolts. If you use a transbrake then things get shaky. Used in TH350 1969-86, 700R4 1982-86, 4T60E 1991-95. A revolutionary upgrade for GM TH350 and TH350C performance …. I prefer to use Teflon sealing rings everywhere as well. COA-12505B - DURA-BOND HI-PERFORMANCE SEAMLESS FRONT PUMP BUSHING (PG, TH350, TH400) $3. This Is A Must Update For 1991 Thru 2000 Transmissions With The Early Overdrive Drum , Planet And Sprag. View Details. Intended for use as a case-saver, our A74761DAC is a new twist on a resurrected idea. The TH-400 is a better choice once you push 700hp or use a transbrake. Very reasonably priced! Upgrades include. FOR SALE! TH350 Turbo 350 Low Reverse Sprag Assembly. TH350 dragging in low gear. Before any upgrades, addons, and/or core charges. The 4L60E is a computer controlled transmission. They both have identical or nearly identical gears, except for the addition of a fourth "overdrive" gear in the 4L80E that allows for better highway fuel mileage due to lower engine speeds. JEGS Case Saver and Center Support Upgrade Kit is intended to save your TH-350, 700R4, 4L60E, or 4L65E case plus upgrade the original design. TH350 Competition Components. Product Description. The level 3 TH350 is good for motors up to 600 horse power. Number of Element: 36. In addition to a good standard rebuild (clutches, bushings, seals, etc. or the one that is …. Nov 16, 2009 · I'm about to have my TH350 redone. It takes more abuse than the stock outer race, but can still fail in a high-torque application if it is used with the stock roller clutch assembly.