The 6L XX family is a series of 6-speed longitudinally-mounted automatic transmissions produced by General Motors.

Comprehensive guide to the GM 6L80 and 6L90 automatic transmissions — specifications, technology, history, applications, and Jeep conversion adaptability.

We address the 6L80’s known wear points (3-5-R, 4-5-6, TCC apply) and match friction materials, clearances, hydraulics, and converter build to your vehicle’s weight, gearing, tires, and duty …

Sep 26, 2025 · Our 6l80 transmission inventory consists of used and remanufactured models that can be shipped fast and free straight to your commercial address with just a few clicks of a …

Jan 14, 2021 · The 6L80 and 6L90 transmissions have become the most popular rear-wheel drive GM transmissions in most of our shops. We have seen several patterned failures, written …

Nov 28, 2025 · The 6L80 transmission has a reputation—and not the good kind. This guide cuts through the noise to show you what’s actually failing, why it happens, and what you can do …

Jan 13, 2015 · Introduced in 2006, the 6L80 is a popular, 6-speed, RWD transmission produced for more than 8 million trucks, SUVs and cars. It's used by GM in about 20 models, most …

Developed with upgraded internal components, Chevrolet Performance’s SuperMatic 6L80-E six-speed automatic transmission offers an exceptional torque rating of 664 lb.-ft.—a 45-percent …

The 6L80 Hydra-Matic transmission is a 6 speed automatic transmission manufactured by General Motors. It was created to help GM meet ever more demanding CAFE regulations on …

The 6L80 transmission is a 6-speed GM automatic transmission designed for rear-wheel drive, all-wheel drive, and four-wheel drive cars, trucks, and SUVs. The 6L80 transmission is found in …