Proform Chevy Differential Covers

Decode, ID, and upgrade your GM 12-bolt rear end. Learn axle specs, gear ratios, and best performance parts upgrades.

The pros and cons of a welded diff vs open diff, plus what to know before learning how to weld your differential.

Take a look at a few of the rare and wonderful Chevy engines in the Museum of American Speed!

Kevin W. walks through each step of installing a new alternator bracket on a 454 Big Block Chevy.

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

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

In this Tech Tip, John answers a customer concerns about adding additional drop to his 1960-1972 Chevy truck.

Read how to lower the front of your 92-98 Chevy pickup using a DJM lowering kit. These tips are helpful for smooth completion.

Learn how to install a side detent shifter in a 1969 Chevy C10.