GMC Automatic Transmission Parts

This resource contains a transmission pan shape ID chart and other tips to help with identifying GM transmissions.

Old trucks are just meant to have manual transmissions. They're made even better with a modern overdrive like a Tremec TKX. Watch our C10 manual transmission conversion on an LS-swapped '68 to see just how easy it is to row your own gears,

A real-world guide to 4L60 transmission specs, strength, and swap tips.

How to plan and execute a LS swap into any 1973-1987 Chevy/GMC K10 pickup truck.

Learn how Zach replaces a transmission and breakaway converter in his 55 Chevy, with some helpful tips along the way.

Learn how to swap out an LS engine with a modern fuel injected engine into a hot rod for added horsepower, fuel economy, or throttle response. View a list of parts and helpful tips to complete the installation.

Learn more about GM steering column identification, GM steering column lengths, and GM steering column compatibility.

Check out these tips on T-5 transmissions!

Exlpoded View of the Bert 1300 Late Model Racing Transmission

Whether you've never had the chance to see our warehouse or talk to the team at the counter or you've been here a hundred times, check out this behind the scene video.