1977 GMC K25 T5 Transmission Parts

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!

Check out these tips on T-5 transmissions!

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

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

Follow along as Jeff installs an early 700R4 transmission for the big block in his 1967 Chevelle. See how this unit is upgraded and converted to a later 30 spline style.

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

Steve takes us along as he centers the 525 manual steering gear he is using for his Laguna.

Learn about the G Force crossmember and how the symmetrical product design makes for a smooth installation on Jeff's 1967 Chevelle.

Learn about the power behind the G-body platform and the steps to upgrade a 7.5" bolt rear end to a 8.5" to withstand high horsepower. See how to change the differential fluid and install new gaskets.