Buick GS Thread Checkers

In this budget build, a GM rear end is upgraded in order to hold 400+ HP. See how spherical bushings are replaced in a used 8.5” GM 10 bolt rear end.

Learn about thread sizing with this easy to read thread size chart!

Learn about GM alternator identification in our guide. We cover GM 3 wire alternators, 1 wire alternators, and externally regulated so you know what to choose.

Need a little help Identifying GM Body Styles 1964-1972? Click Here!

Hooker headers are installed in a 1967 Pontiac Firebird for increased power and a boost in performance. See how to work through fitment of the steering box, clutch Z bar and starter.

It is most certainly an important procedure and should be part of a weekly maintenance routine.

Having issues fitting headers into your car/engine? This article provides helpful hints on ways to modify or add parts to make the headers fit in your specific car. Kevin W. explains his build experience with headers.

Here's a handy guide to familiarize you with our G-Comp line of performance suspension systems.

Troubleshooting a fuel gauge can be a seriously aggravating issue. Click here for a video showing some hints and tips!

Making the switch from manifolds to headers is a popular performance upgrade, but it may take more than just bolting on the new part. We provide some tips and things to consider after you bolt on a new set of headers.