![]() ![]() GM designed the 6L80 transmission to be able to handle high horsepower/torque applications. That way you get a longer service life, along with a 3-year/Unlimited Mile Nationwide Warranty.’ Remanufactured 6L80 Transmission Updates and Upgrades A remanufactured 6L80E transmission on the other hand, is completely remanufactured, and it’s designed to exceed the manufacturer’s original specifications. ![]() A used 6L80E transmission is pulled from a wrecked vehicle, so there’s no telling what may be wrong with it, or how long it will last. So the service life is limited, and the warranty will only last 1-2 years. A rebuilt 6L80E transmission will only have a certain number of components that get replaced. If you’re having 6L80E transmission problems, you’re going to want the most economical solution. Slipping in First Gear – If you have difficulty getting your vehicle to move from a dead stop, then it’s possible that one of the solenoids is stuck in the ‘off’ position, or there’s a problem inside of the valve body. Slipping Between Gears – If you experience slipping in reverse, or between 2-3, then it’s very likely that the 1-2-3-3/5-R drum has developed a crack, which will require an entirely new drum and bearing. Reverse Fails to Engage – If you’ve selected Reverse and your vehicle still won’t move, then it’s possible the park prawl (the metal piece that stops your vehicle from rolling), or one of the clutches has become damaged. The 6L80 transmission has a dry weight of 195 lbs, and can weigh as much as 230 lbs when filled with the recommended amount of Dexron VI transmission fluid. All of these changes increase the 6L90 maximum output torque rating to 885 lb-ft, and the GCVW jumped to 21,000 lbs. There’s also strengthened input and output gearsets, and heavy duty applications receive one more clutch plate in each clutch pack. The 6L90 transmission case is 1-3/8” longer, which provides extra room to house two additional pinion gears (6 total). ![]() The main difference between the 6L80 transmission and 6L90 transmission is the strength of the internal components. What is the difference between 6L80 and 6L90 transmission? That’s obviously quite a lot of power, which is why the 6L80 transmission is used in high-performance applications like the Chevy Camaro and Chevy Corvette. If you were wondering how much HP can a 6L80 handle? This transmission is designed to handle as much as 440 lb-ft of engine torque and 664 lb-ft of output torque. For more information on 6L80 transmission problems, click here. A number of 6L80 transmission problems can occur however, including slipping and failure of reverse gear. In response to the question ‘how reliable is the 6L80 transmission?’, the answer partly depends on how well the transmission is maintained. What vehicles have 6L80 transmission?Ī number of popular GM vehicles have the 6L80 transmission, including the Cadillac Escalade, Chevrolet Silverado 1500, Chevrolet Camaro, Chevrolet Suburban, Chevrolet Tahoe, GMC Sierra 1500, and GMC Yukon. ![]() They are designed for RWD and AWD/4WD applications, and feature clutch-to-clutch operation with a wide gear ratio for optimum performance and efficiency. First introduced in 2005, the 6L80 transmission is a 6-speed automatic gearbox that is made by General Motors at their Willow Run transmission factory in Ypsilanti Michigan, and at their transmission plant in Toledo, Ohio. ![]()
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