GM B-Body Thread Checkers

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

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

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

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.

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.

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.

An overview on swapping turbo mufflers for chamber mufflers on a 1969 C/10 pickup. See how to extend the muffler length using exhaust pipe.

Read some tips on how to properly set relief valves.