GM B-Body Car Covers

Decode, ID, and upgrade your GM 12-bolt rear end. Learn axle specs, gear ratios, and best performance parts upgrades.

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.

We picked Zach and his Nova for our Muscle Car Catalog cover because it's a great car...and a great story.

Learn a few tips on how to properly mount Modified bodies and some products that will help get your race car body fabrication job done!

Learn more about GM steering column identification, GM steering column lengths, and GM steering column compatibility.

Roger Riffle had this 1930 Model A project on his mind for three decades.

Discover Pro Body Filler Tips: A Complete In-Depth Guide with Insights from a Show Car Builder.

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

Meet Bryce Campbell. He's the winner of our Cover Car Contest and this is his IMCA Sport Mod. He's taken his whole family racing with him, and we're thrilled to bring you his story.

How to eliminate unwanted to holes in your car's body, trunk, floor, or firewall with easy to use patch plugs from Speedway Motors.