Tri-Five 4L85E Transmission Parts

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

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

Check out these tips on T-5 transmissions!

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

Follow Tim as he swaps tail housings and covers on a T-5 transmission

We can teach you some of the major differences between the Ford and GM-style T5 Flathead transmission adapter kits. We'll also walk you through choosing the correct parts in order to make this installation a breeze!

We show you how to keep that old GM transmission when swapping in an LS engine. Our LS swap adapter kits make it easy!

An LS cam swap can yield big power gains. And, you can do it at home. Here's how...