Tri-Five Auto Trans Fluids

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

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

Learn the difference between DOT 3 and DOT 4, or DOT 5 and DOT 5.1. Every type of brake fluid has a specific boiling point and water absorbing quality.

Learn about how aftermarket transmission coolers can help keep your transmission cool and the different options available for cooling with our expert guide.

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

Find out how to achieve the correct tire pressure for optimal race car performance.

Check out these tips on T-5 transmissions!

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!

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

Learn what a manual valve body can and cannot do for your automatic transmission and performance driving needs