Hm290 transmission hp rating

Jul 11, 2024
The 4L80E is the descendant of the "Ole Reliable" TH400 transmission. It shares many components and design features. At Jake's Performance the 4L80E is our most popular transmission. We have built them for applications ranging from heavy towing vehicles to 1800+ HP street/strip cars. The 4L80E has proven reliable like it's predecessor..

The later model the stronger. Forget an hm290, junk. Larry Largarto Rancher & Tumbleweed Farmer. Premium. GMOTM Winner. Author. Joined Jul 18, 2000 Posts …(No reviews yet) Write a Review Write a Review ×. Zumbrota Drivetrain HM290 Manual Transmission for GM 93-95 1500 And 2500 2WD 5 Speed Zumbrota Drivetrain. Rating * Name *Email *Review Subject *Comments Recommended. Quick view. NV3500 Manual Transmission for Dodge 94-97 Ram 1500 And 2500 5.2L 4x4 5 Speed Zumbrota Drivetrain ... Zumbrota Drivetrain Manual Transmissions are rebuilt to the highest quality standards using a 3 step inspection process. Step 1 is a pre-inspection for case cracks, excessive wear, and OEM specific problems. Step 2 measures component parts to ensure OEM specifications are met. Step 3 ensures each unit is built to our exacting quality standards. The NV3500 is a five speed, RWD or 4WD transmission. The NV3500 is an aluminum case with integrated bell-housing, and a waffle pattern on the case. Getting the correct parts takes some work, there are three separate designs known as the Getrag HM290, the 5LM60 Muncie and the New Venture NV3500. The NV3500 was used by Dodge in 1994 to 2004.5LM60 5Speed manual HELP. I've just recently purchased a 1989 GMC Sierra K2500 LB to replace my 1988 K1500 SB that started losing gears one by one. 2 months later, the tranny in the newer truck lost reverse. I can't afford to buy a 3rd truck so I have to repair it myself. Well, like most guys with these transmissions, I went thru hell trying to ...It'll handle what I do for the next 15 years just fine. But you should test drive them both. 2020 Ram 3500 MegaCab DRW Night Edition-SO/68RFE-Ram Air Suspension-Level 2-Towing Tech-Power Running Boards-Sunroof-AUX Switches-GN/5th Prep-Buckets-12.0 Nav-LED Bed-Spray'n Bed. 2018 GT350R.Re: T50 Power rating. 1st gear is easy on the boxes, as if you have enough power it'll spin the wheels. 4th and 5th are where boxes fell the pressure, and from what I believe, a T50 is good for up to 200 to 250 hp, but some take more and …At present Tremec is working on adding 4WD units to the product line, as there is no demand for 4WD in the Mexican-Latin American market. The TR-3450 is a direct bolt-on replacement for the HM290, 5LM60 and 3500 Getrag-design transmissions, and the TR-4050 is a direct bolt-on replacement for the NV 4500 heavy-duty truck transmission.Transmission Ratio RPM; Horsepower; Rod Ratio; ... HM290 Manual Transmission for GM 99-07 Silverado & Sierra 1500, 2WD, 5 Speed ... 0 reviews for RMT290C-11.Transmission Ratio RPM; Horsepower; Rod Ratio; Engine Displacement; Gear Ratio; Back to Main Menu ... HM290 Manual Transmission for GM 99-07 Silverado & Sierra 1500, 4x4, 5 Speed. RMT290C-14. 0 in stock, backorders available ... Your rating * Your review * Please tell us about ...Transmission Ratio RPM; Horsepower; Rod Ratio; Engine Displacement; Gear Ratio; Back to Main Menu ... HM290 Manual Transmission for GM 88-92 Van 1500 & 2500, 2WD, 5 Speed. RMT290C-1. ... 0 reviews for RMT290C-1. Add a review . Your email address will not be published. Required fields are markedDec 4, 2019 · I put probably 30k miles on a 1989 NV3500/HM290 with a ~400 crank hp small block, including towing and autocross. The transmission had 155000 miles on it when I swapped in the built engine. It was still fine when I sold it. I'll echo the comments about it not being about the power, but more about how much you abuse it. The Classic DS model, has the 8HP70, which has a max hp/torque limit lower than the 8HP75 that they started using on the 2019 DT all-new platform. Even those have two versions, one built in-house for Pentastar V6 trucks and one built by ZF for Hemi engined trucks. Your truck would likely keep to the same spec's as the 2018 RAM.The Classic DS model, has the 8HP70, which has a max hp/torque limit lower than the 8HP75 that they started using on the 2019 DT all-new platform. Even those have two versions, one built in-house for Pentastar V6 trucks and one built by ZF for Hemi engined trucks. Your truck would likely keep to the same spec's as the 2018 RAM.Rating * Name *Email *Review Subject *Comments Recommended. Quick view. HM290 Manual Transmission for GM 93-95 1500 And 2500 2WD 5 Speed Zumbrota Drivetrain ... *Comments Recommended. Quick view. HM290 Manual Transmission for GM 93-95 1500 And 2500 2WD 5 Speed Zumbrota Drivetrain. $1,428.00. Add to Cart. Quick view. …Those ratings are about average for the sports car class. The Camaro's fuel efficiency drops as the engines get more powerful. With the V6 and the manual transmission, this Chevy gets 16 mpg in the city and 26 mpg on the highway. Ratings sit at 16/24 mpg and 14/20 mpg, respectively, in models with the 455-horsepower and 650-horsepower V8s.Details. GM Getrag 290 5 speed Transmission Rebuild Kit 2nd Design 1988-1990 BK235AWS MG5, HM290 Transmission Rebuild Kit This complete kit includes narrow front and rear main shaft bearings, input pocket bearings, a front counter plug, a complete small parts kit which includes snap rings, washers etc., seals and high quality synchro rings.A new Tremec Magnum transmission converted specifically to your application. Price varies. Level 4. New Tremec Transmission. New transmission with Level 1 upgrades and converted to your ...In- put-shaft speed is rated at 6,000 rpm. Ratios are 4.01-1 first gear, 2.32-1 second gear, 1.40-1 third gear, 1.00-1 fourth gear, 0.73-1 fifth gear (overdrive) and 3.74-1 reverse. You may see the four-speed version called an MCO and the five-speed called an MG5. Don't be confused. These are regular production op- tion codes.389 posts · Joined 2004. #2 · Mar 10, 2008. They are hit or miss, and it depends on how they are used. THey can break at stock power levels, and then they can last at like 350 hp. I got a freind who run's 11's still on his stock one. 88 Mustang GT - sold. 93 lx - sold. 00 Mustang GT.Transmission Gear Ratio Chart ~ Gear Ratios are listed for many popular transmissions... Newest [ February 23, 2024 ] ... Testing Popular Rust Encapsulating Paints Products & Reviews [ January 31, 2024 ] Pole Barn Garage Builds the Ultimate 4X4 Big Block Shaggin' Wagon Builds and Examples [ January 31, 2024 ] ...Nm (lb-ft) Full Load Engine Governed Speed. 1700 800 (1950) 4000 Product Family Transmission Ratings - October 19, 2021 Page 5. Rating Gross Input Power Net Turbine Torque GVW GCW kW (hp) Nm (lb-ft) kg (lbs) kg (lbs) min rpm max rpm min rpm max rpm Highway. Without 433 3525 n/a n/a Torque Limiting (580) (2600) n/a n/a.Full Load Engine Governed Speed Engine Idle Speed in Drive Nm (lb-ft) 800 3600 (811) 1100. 3000 Product Family Transmission Ratings - August 10, 2021 Page 6. Gross Input Power Net Turbine Torque GVW GCW kW (hp) Nm (lb-ft) kg (lbs) kg (lbs) min rpm max rpm min rpm max rpm.Packard was once a leader among automakers, but changing tastes and poor business decisions doomed the brand. Learn more about Packard cars. Advertisement For many people, Packard ...M/T 93-95 GM 1500 , 2500 & VAN 5SPD , 2WD , INTEGRAL BELL , 1 SHIFT RAIL , EXT. SLAVE .HM290 Manual Transmission For GM 99-07 Silverado & Sierra 1500, 4X4, 5 Speed; M/T '99-'07 GM SILVERADO & SIERRA 1500 5SPD, 4WD, INTERGRAL BELL, 1 SHIFT RAIL; See more product details. Estimated to ship direct from manufacturer on 04/11/24 , pending manufacturer availability. ... Reviews; Q & A; Special Order Item:Im considering getting an M50 to replace my MG5 due to the more desirable ratios, but want to be sure torque ratings are the same. Im going to be going from my 10 bolt open carrier 3.08 rear end to a 14 bolt 454ss 3.73 posi and the M50 close ratio would provide a more useable 1st and 2nd gear. Shift points would be at about 5,600 rpm with the ...Get the Best Performance with Zumbrota Remanufactured HM290 Manual Transmission for GM 99-07 Silverado & Sierra 1500, 4x4, 5 Speed RMT290C-14 parts at JEGS. Shop Now at the Guaranteed Lowest Price! Save $5 off $49+, $10 off $99+, $30 off $299+, $50 off $499+ Orders* - Use Promo Code: Spring.60:Relative torque rating, which is around 360 lb-ft; the higher the number the stronger the transmission E: Electronically controlled valvebody Junkyard ID The 700-R4 and 4L60All Forum Categories Outboard Motor Repair Gas Inboard & Sterndrive Repair Diesel Inboard Repair Marine Transmission Repair Miscellaneous Engine Topics Boat & Systems Repair Popular Repair Topics . Videos & Blog ... New HP ratings. Thread starter shinola; Start date Feb 7, 2021; S. shinola Contributing Member. Feb 7, 2021HM290 Manual Transmission for GM 1996-1997 S10 S15 And Sonoma 4.3L 5 Speed 4x4 RMT290C-10; Zumbrota Drivetrain - Manual Transmissions ... Rating * Name * Email * Review Subject * Comments * MPN: RMT290C-10. $1,729.89) Freight (Continental US): +$400.00. VERIFY YOUR FITMENT. This product may only fit specific applications, but we do not have the ...Get the Best Performance with Zumbrota Remanufactured HM290 Manual Transmission for GM 96-98 Van 1500 & 2500, 5 Speed RMT290C-6 parts at JEGS. Shop Now at the Guaranteed Lowest Price! ... Reviews; Q & A; Special Order Item: ... Sonnax HP-4L80E-01 - Performance Pack for GM 4L80-E/4L85-E Transmissions (1)NV3500 HM290 Manual Transmissions - Midwest Transmission Center, Inc. Pretty much the same info Getrag HM290 Manual Transmission or NV3500 Rebuild Kit & Parts - drivetrain.com . Mr48chev, Feb 12, 2021. SHARE POST #10. rockable likes this. Joined: Jul 25, 2006 Posts: 4,660. Profile Page. Truckedup ...the way I understand it is the Getrag=HM290=NV3500=5LM60. just other names for the same transmission. They have a 1 shift rail version & a 3 shift rail version. Yes they look similar and the internals are very different. see the attachment. before the NV3500, I believe S10's used a T-5 Borg-Warner. Borg-Warner sold that division to Tremec.Needle. 1069.85. 12838. 110. 203. ** Not a critical dimension for location of snap ring. Suggested Maximum Normal Operating Angles: 15° Operating Angle @ 540 RPM. 7° Operating Angle @ 1000 RPM.Be the first to review this product. $128.44. GM Getrag 290 5 speed Transmission Rebuild Kit for the 1991-ON GMC Full Size truck and Van. MG5, HM290 Transmission Rebuild Kit This complete kit includes narrow front and rear main shaft bearings, input pocket bearings, seals, a front counter plug, a complete small parts kit which includes snap ...GETRAG 290 5LM60 HM290 TRANSMISSION SHIFT TOWER INNER SEAL 2.69" O.D. FITS '88-'90 CHEVY & GMC (290-45A) Rating Required. Name Email Required. Review Subject Required. Comments Required. Current Stock: Add to Wish List. Create New Wish List; ×. Description ...Exceptional torque rating. Developed with upgraded internal components, Chevrolet Performance's SuperMatic 6L80-E 6-speed automatic transmission offers an exceptional torque rating of 650 lb.-ft. - a 45 percent increase over regular production versions of the 6-speed automatic. Find Dealer.Find Zumbrota Remanufactured Manual Transmissions and get Free Shipping on Orders Over $109 at Summit Racing! Zumbrota remanufactured manual transmissions are some of the most dependable 5-speed, 6-speed, and transaxle units available. Each transmission is put through tremendous testing and inspections to assure the highest …Transmission Ratio RPM; Horsepower; Rod Ratio; Engine Displacement; Gear Ratio; Back to Main Menu ... HM290 Manual Transmission for GM 99-07 Silverado & Sierra 1500, 2WD, 5 Speed. RMT290C-11. 0 in stock, backorders available ... Your rating * Your review * Please tell us about ...Horsepower Rating: 500 hp: 600 hp: 700 hp: ATS 5R110 Transmission: ... Reviews . ATS 5R110 Billet Transmission Modifications The 5R110 transmission requires many up-grades in order for it to hold up to the Power Strok... Description ; Assembly Instructions ; Warranty Details ; Reviews ;Jun 14, 2023 · 4. Reaction score. 2. Location. Austin. So i have a 1991 gmc sierra 1500 with a stock small block 350 and it has the hm290 manual transmission i rebuilt 2 weeks ago. So im plannin on putting a little more hp on the engine about 300 to 400 hp but i wanted to keep it manual but I heard these transmissions are wimpy. Naturally, the net output of a given engine is somewhat lower than the gross output. For example, the 217 cu. in. (3,547 cc) “Stovebolt” six in a 1950 Chevrolet had a gross output of 92 hp (69 kW), but a net output of only 85 hp (63 kW). Chevrolet’s 1955-vintage 265 cu. in. (4,344 cc) small block V8, meanwhile, had a gross output of 162 ...HM290 Manual Transmission For GM 99-07 Silverado & Sierra 1500, 4X4, 5 Speed; M/T '99-'07 GM SILVERADO & SIERRA 1500 5SPD, 4WD, INTERGRAL BELL, 1 SHIFT RAIL; See more product details. Estimated to ship direct from manufacturer on 04/11/24 , pending manufacturer availability. ... Reviews; Q & A; Special Order Item:HM290 Manual Transmission for GM 88-92 1500 And 2500 4x4 5 Speed Zumbrota Drivetrain. Rating * Name *Email *Review Subject *Comments Recommended. Quick view. HM290 Manual Transmission for GM 93-95 1500 And 2500 2WD 5 Speed Zumbrota Drivetrain. $1,428.00. Add to Cart ...How Much HP Can A 700R4 Handle [Explained] The horsepower that stock and an upgraded 700R4 transmission can handle is not the same. If you're wondering how much hp can a stock 700R4 handle, the answer is around 300 HP. Though a stock 700R4 is rated to handle 350 HP, the users tend to have trouble when they go over 300 HP.Transmission Ratio RPM; Horsepower; Rod Ratio; Engine Displacement; Gear Ratio; Back to Main Menu ... 0 reviews for RMT290C-6. Add a review . ... Your review * Please tell us about your experience with HM290 Manual Transmission for GM 96-98 Van 1500 & 2500, 5 SpeedBe the first to review this product. $128.44. GM Getrag 290 5 speed Transmission Rebuild Kit for the 1991-ON GMC Full Size truck and Van. MG5, HM290 Transmission Rebuild Kit This complete kit includes narrow front and rear main shaft bearings, input pocket bearings, seals, a front counter plug, a complete small parts kit which includes snap ...As such, there is some "head room" in terms of power capacity. As long as there is no excessive wear inside from high miles or neglect, a good 5-speed Allison can hold about 100 more horsepower than stock. While that does sound like a lot at first, just consider a custom tune can easily add more than 130 horsepower, getting you well into ...Get the Best Performance with Zumbrota Remanufactured HM290 Manual Transmission for GM 93-95 Van 1500 & 2500, 4x4, 5 Speed RMT290C-4 parts at JEGS. Shop Now at the Guaranteed Lowest Price!Zumbrota remanufactured manual transmissions are some of the most dependable 5-speed, 6-speed, and transaxle units available. Each transmission is put through tremendous testing and inspections to assure the highest quality possible to use in your vehicle. Benefits of Zumbrota remanufactured manual transmissions include:5LM60 5Speed manual HELP. I've just recently purchased a 1989 GMC Sierra K2500 LB to replace my 1988 K1500 SB that started losing gears one by one. 2 months later, the tranny in the newer truck lost reverse. I can't afford to buy a 3rd truck so I have to repair it myself. Well, like most guys with these transmissions, I went thru hell trying to ...1940-1967 Hydra-Matic — Oldsmobile (now the trade name for all GM automatic transmissions) 1948-1963 Dynaflow — Buick. 1950-1973 Powerglide — Chevrolet (also used by Pontiac, Holden, Vauxhall and Opel) 1968-1971 Torquedrive - Chevrolet ( Camaro and Chevy II, Nova. Manually shifted on Column. 1957-1961 Turboglide — Chevrolet (V8 ...Reviews. Buyer's Guide. Magazines. The Future. Watch. Free TV. Advertisement. Advertisement. 350/290 Crate Engine - Part 2. How to bolt on nearly 50 hp to a small-block Chevy ... This is important ...The part cost from drivetrain.com is also steep: $150. They also gave me the option to purchase the upgraded shift tower which apparently has the center return spring built into it for $250. Pics of '93 nv3500 (1993 new venture 3500, mg5, mg-5 whatever): So i am looking at buying a hurst competition truck shifter (pn 391-0121) which i believe ...Powerglide Transmissions HP Rating; Superglide 4: 3500: Superglide 2: 2400: High Impact Pro Glide: 1800 : Pro Glide - Straight Cut: 1500: Footbrake Pro Glide: 750 : Superglide 4 Powerglide Transmission: Max HP 3,500 HP Specs • 1.82, 1.64 or 1.62 Vasco Gears • Custom extra-length Sun Gear Bushing • Precision-balanced new 4340 Steel Carrier ...Zumbrota HM290 5-Speed Manual Transmission GM S10 | S15 4.3L Internal Slave 4x4 1998-2005. $1,799.89. Zumbrota Drivetrain. Model #RMT290C-13. ... Reviews; Zumbrota Drivetrain Manual Transmissions are rebuilt to the highest quality standards using a 3 step inspection process. Step 1 is a pre-inspection for case cracks, excessive wear, and OEM ...Again, crediting the modular design, there are three variations of all-wheel-drive systems that the 8HP can handle. First up is a standard transfer case bolted to the transmission's tail like the units typically found in SUVs. Second, the transmission case can include the front axle drive and center differential, making it one complete unit.Another indicator is the transmission casing notice how the 6-speed has more ribs in the casing compared to the 5-speed. As for power holding this is strictly an estimate. Which again varies based on how the car is driven and condition. But the 5-speed under moderate use can likely hold up to 200whp. the 6-speed is likely closer to 300whp.gm getrag 290 (hm290) transmission rebuild kit with synchro rings fits '88-'89 chevy & gmc (bk235ws) tpd pro-line. $399.77 $459.99. add to cart. compare compare items. gm transmission mount universal fit for automatic or manual by richmond gear (86-0010-1) richmond gear. $59.77 $67.99. add to cart ...6026 posts · Joined 2010. #3 · Aug 9, 2010. If the case is in good shape and everything is tight, Id say 400-425 is conservative. What usually happens is that old aluminum case lets things get sloppy and its downhill from there. The M21 is the strongest ratio aside from the M22 due to the lower helix angle of the teeth on the 22.Bismarck, North_Dakota. gabytech said: Transmission are not rated on how much hp they can hold but rather how much torque they are rated to handle. Plus it all depends in which type of racing will the tranny see: street racing, drag racing, road racing, etc... The OEM trans are not rated for high numbers.So you've got the light duty 5 speed (HM290, 5LM60, NV3500, etc.) - in other words straight 1 thru 5, no granny low 1st gear. It takes ACDelco "Syncromesh Transmission Fluid" which is part # 88900333 - dunno the specifics on it such as weight or GL-specification though. Lots of people offering Syncromesh style fluid so go with a brand you trust.348ci: It features a 4.125x3.25-inch bore and stroke with a 9.5:1 compression ratio, resulting in 250 to 350 hp, depending on the year and performance package. It was available from 1958 to 1961 ...New Venture Gear 3500 transmission. The New Venture Gear 3500, commonly called NV3500, is a 5-speed overdrive manual transmission manufactured by New Venture Gear and used by GM and Dodge in compact and full-size light trucks. It can be identified by its two-piece aluminum case with integrated bell housing and top-mounted tower shifter.

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That The TH350 takes about 4 quarts in the pan, and then requires additional based on the torque converter being used. When combined with a 9.5” converter, the overall requirement is around 10 quarts. The Turbo 350 transmission, commonly known as the TH350, was a 3 speed automatic transmission that began phasing out the GM Powerglide in 1969.

How HM290 Manual Transmission for GM 96-97 S10 S15 And Sonoma 4.3L 2WD 5 Speed Zumbrota Drivetrain. Rating * Name *Email *Review Subject *Comments Recommended. Quick view. HM290 Manual Transmission for GM 93-95 1500 And 2500 2WD 5 Speed Zumbrota Drivetrain. $1,428.00. Add to Cart ...139 posts · Joined 2017. #1 · Sep 20, 2017. What HP rating are people experiencing no issues with stock bottom end? Called a couple of shops and their opinion is around no more than 700-750 HP and that is when you can experience rod shrinkage and white smoke. We are not talking about sending rods through the block but bent rods or stressed ...

When Zumbrota Drivetrain Manual Transmissions are rebuilt to the highest quality standards using a 3 step inspection process. Step 1 is a pre-inspection for case cracks, excessive wear, and OEM specific problems. Step 2 measures component parts to ensure OEM specifications are met. Step 3 ensures each unit is built to our exacting quality standards.Rating Required. Name Email Required. Review Subject Required. Comments Required. Current Stock: Quantity: ... GETRAG 290 5LM60 HM290 TRANSMISSION SHIFT TOWER INNER SEAL 2.69" O.D. FITS '88-'90 CHEVY & GMC (290-45A) TPD PRO-LINE.…

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cromartie and lee funeral home What I was told; 08 thru 10 were 485; when they changed to new scr engines they bumped hp to 505; don't think you can make a 485 to a 505 because of model yr. also if your dealer charges what mine wanted too; for changing 425 to 485; you'll find another truck spec 'ed the way you want it. Quote.All Forum Categories Outboard Motor Repair Gas Inboard & Sterndrive Repair Diesel Inboard Repair Marine Transmission Repair Miscellaneous Engine Topics Boat & Systems Repair Popular Repair Topics . Videos & Blog ... New HP ratings. Thread starter shinola; Start date Feb 7, 2021; S. shinola Contributing Member. Feb 7, 2021 dmv mega center garland txhow to block channels on xfinity Getrag Hm290 Manual Transmission getrag-hm290-manual-transmission 4 Downloaded from legacy.ldi.upenn.edu on 2021-08-23 by guest literature thrives, and readers embark on a journey filled with delightful surprises. Getrag Hm290 Manual Transmission We take pride in curating an extensive library of Getrag Hm290 Manual Transmission PDFHM290 Manual Transmission for GM 88-92 1500 And 2500 4x4 5 Speed Zumbrota Drivetrain. Rating * Name *Email *Review Subject *Comments Recommended. Quick view. HM290 Manual Transmission for GM 93-95 1500 And 2500 2WD 5 Speed Zumbrota Drivetrain. $1,428.00. Add to Cart ... mapco anniston almyrtle beach asian spagenisys credit union clarkston michigan The Ford Racing Z-7003 T5 will live quite well behind a fresh ( 400-430 hp) 351W but a 500 hp 393 will eat it alive.I had a such a brand new trans in my Futura behind various 351s without a problem but when I stroked the engine to 393, it broke on the first full blast ( the famous race with a Kawasaki Ninja up to 170-180 mph).The axial force ...Need parts not listed, just print illustrated drawing of the HM290/NV3500, circle the parts you need and fax it to us at 1-702-873-4534 and we will provide a quote. Minimum order of $25.00 on transmission parts. Getrag HM290, 5LM60, NV3500 Rebuild Kit for Truck 5 Speed Manual transmission and parts Tech support and illustrated parts drawing. cheapest gas in dayton ohio Getrag Hm290 Manual Transmission GM Turbo 350 Transmissions Cliff Ruggles 2015-07-15 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. Millions of GM cars and trucks magdalena ecke ymca pool scheduleroundtop antique show spring 2024corelle dishes have lead Re: How much horsepower can a M-20,21,22 handle? (71coupe) What saves the transmission is lack of traction at the tires. If you bolt on a set of tires that hook, then maybe the M20 and M21 will begin to reveal their weakness behind a strong big block (or hotrodded small block).Here is some test data from the 2.96 ratio Muncie transmissions that I used to build. All standard helix units failed at ~320 ft-lbf of torque with about 0.030" case stretch. All of the low helix sets failed at ~390 ft-lbf of torque with about 0.050" case stretch. All of these cases split at the small end of the counter shaft and shredded ...