6L80 Transmission FAQ | Frequently Asked Questions

Who makes the 6L80 transmission?

Who makes the 6L80 transmission?
Who makes the 6L80 transmission?

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. 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.

Need a replacement transmission? Get an estimate for replacement transmissions and local installation. Look up your transmission model by vehicle make and model.

What Transmission Do I Have?

What vehicles have 6L80 transmission?

A 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.

How good is the 6L80 transmission?

In response to the question ‘how reliable is the 6L80 transmission?’, the answer partly depends on how well the transmission is maintained. A number of 6L80 transmission problems can occur however, including slipping and failure of reverse gear. For more information on 6L80 transmission problems, click here.

How strong is a 6L80 transmission?

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. 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.

What is the difference between 6L80 and 6L90 transmission?

The main difference between the 6L80 transmission and 6L90 transmission is the strength of the internal components. The 6L90 transmission case is 1-3/8” longer, which provides extra room to house two additional pinion gears (6 total). There’s also strengthened input and output gearsets, and heavy duty applications receive one more clutch plate in each clutch pack. All of these changes increase the 6L90 maximum output torque rating to 885 lb-ft, and the GCVW jumped to 21,000 lbs.

Need a replacement transmission? Get an estimate for replacement transmissions and local installation. Look up your transmission model by vehicle make and model.

What Transmission Do I Have?

How much does a 6L80 transmission weigh?

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.