2nd Gen G-Body 2004R Parts

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.

Looking to swap the venerable LS engine into your hot rod, muscle car, or classic truck? Take a look at our detailed identification guide for Gen III/IV LS engines before you hit the salvage yard or swap meet!

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

In Episode 2 of our '68 C10 build, we rip it apart, clean up 54 years of rust and dirt, and get to work on the rear suspension.

Learn how to identfy motors for your LS Swap. In this guide we cover generation 4 small block engines and some of the cheaper options for more power.

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 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.

Speedway Motors employee Tim M. Decided to take us along as he revives his 241 "Baby Hemi". In this installment, Tim helps his project breathe a bit better with and Edmunds 2x2 intake, topped with a pair of Speedway Motors' own "9 Super 7" carbs.

Tips and tricks to pull the most from your GM 602/604 platform.