GM A-Body 4L85E Parts

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

Speedway Motors employee Steve upgraded the trailing arms on his 1976 Chevrolet Laguna with some spherical bushings.

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.

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

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

Learn how to swap out an LS engine with a modern fuel injected engine into a hot rod for added horsepower, fuel economy, or throttle response. View a list of parts and helpful tips to complete the installation.

In this Tech Tip, John responds to a customer question about the rod end angle on his Model A 4-Bar Suspension Kit.

In this Tech Tip, John offers up a couple solutions to a customer on the hunt for a coil over kit for his 2-door Model A.

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