UMI Performance G-Body Parts

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

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.

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

The stories and memories you create in the garage and on the track make every day at Speedway Motors meaningful. Thanks for building your stories with us. Timm's dad introduced him to the motorsports world and he continues to appreciate it.