4l80e Overdrive. The 4L80E is an electronic overdrive successor to the Turbo 400,

The 4L80E is an electronic overdrive successor to the Turbo 400, and the latter is a transmission that was used for drag racing and hot rodding applications. This makes the first question more about torque converter selection. It was built on the same platform the ever-true and tried TH400 was built. GM 4L80E, 4L85E Automatic Transmission 4L80E & 4L85E Transmission Ratios & Specs The 4L80E is an evolution of the heavy duty TH400. It was also computer-controlled, which was a first for GM. After GM got its nose bloody with the 700R4 (the first smaller version of an overdrive tranny), the 4L60E replaced it in 1993. The need for an overdrive transmission is essentially the reason for retiring the TH400. Although the Gear Vendor's overdrive unit is bombproof, the 4L80E's . The 4L80e transmission is a four-speed, electronically controlled automatic transmission built for longitudinal engines. Aug 9, 2009 · The 4L80E, an electronic, overdrive-equipped version of the venerable TH-400, is tough enough to handle just about whatever hell you put it through when built properly. Randall Schroeder is a Sonnax technical specialist and a member of the TASC Force® (Technical Automotive Specialties Committee), a group of recognized industry technical specialists, transmission rebuilders and Sonnax Industries Inc. Designed for longitudinal engine configurations, the series included 4 forward gears. GM 4L80 and 4L85E Introduced in 1991, the GM 4L80E and 4L85E are an extension of the TH400 first introduced in the mid 1960s. In O. 75:1 overdrive. Jan 22, 2012 · Thrust Bearing 65405 4L80-E/4L85-E: Fits OD planet/fwd drum; 200: Fits front internal gear-to-carrier Solve 4L80E transmission troubleshooting issues fast. 8K subscribers Subscribe General Motors wanted a powerful automatic overdrive, hence, the introduction of the 4L80e. I've changed the ETC, all the solenoids, TPS, fresh fluid and filter. then was told it could be the vehicle speed sensor. 👍🏼 ️🙏🏼 Aug 1, 2019 · The truck: 1993 Chevy C3500 with a 4L80E. Apr 8, 2010 · 4l80e no od fix the tps throttle positioning sensor will keep your transmission from switching to od. What’s everyone running for a transfer case on this? Aug 25, 2017 · GM’s 4L80E overdrive automatic is the latest in a continuing legacy of rugged Turbo-Hydramatic transmissions from Chevrolet. technicians. As stated above, the 4L80e used most parts of the TH400 but added overdrive gear, lockup converter, and electronic controls. GM 4L80E Performance Transmission Upgrades Originally found in 3/4- and 1-ton trucks, the 4L80E and higher-torque 4L85E transmissions share gear ratios with the 3-speed TH400, but add the 4th Gear Overdrive which is popular for high-horsepower street cars. They are of course a 4 speed overdrive transmission that made their way into several light duty trucks. 55:1 rear gear, the overdrive drops the effective rear gear ratio to 2. Comprehensive guide to the GM 4L80E automatic transmission — history, specifications, development, technology, and Jeep conversion adaptability. 4l80e? I need overdrive in this yacht again. But while the 4L80E is a strong, heavy-duty transmission, during the first few years of production the 4L80E was not as durable as its design permitted due mainly to faulty parts. The addition of overdrive led to the increment of the 4L80e transmission case—about 1½ inches longer than the TH400. And the 700R4 was the standard transmission used in Chevrolet and GMC vehicles starting from 1982. 75:1 Product Description 4L80E Heavy Duty Input Shaft USE ONLY WITH 1993 AND UP OVERDRIVE CARRIER WITH FOUR LUBE SLOTS Sonnax Part Number: 34670-01 nput shaft failure is a common problem in performance and heavy duty GM 4L80-E and 4L85-E transmissions. This automatic transmission has remained in production through the 2009+ model year. It will shift hard from 1-2 and you can barely feel the 2-3 shift. The GM 4L80E 4-speed overdrive transmission is the ultimate overdrive platform to suit virtually combination that requires the strongest overdrive transmission possible. Whereas the TH400 had only 3 forward speeds, the 4L80 features an overdrive 4th gear. 2wd Nov 1, 1997 · Hot Rod takes a close look at the GM 4L80E Automatic Transmission. 0L-400 HP LS Transmission: 4L80E Overdrive Auto Stock #: V22120 $133,998 $1,561 / month 1970 Ford Mustang Shelby GT 350 Video Engine: 6. The only difference is that the 4L80e featured additional upgrades like an overdrive gear, lock-up torque converter Feb 1, 2017 · This TCS also provides an overdrive cancel. Feb 6, 2025 · Few transmissions have seen more production volume than the infamous General Motors 4L80-E transmission. Jul 1, 2013 · My favorite way to kill a 4L80E is to scatter the OD by ruining a bearing or sprag that goes through the gear set. Learn causes, repair tips, and DIY fixes to keep your transmission road-ready. When it shifts into 4th I have a bad vibration.

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