Ford Compact Differential Spools

Learn what gear oils do for your differential and how to choose the best gear lubricant for your application's needs

Comparing open diff vs limited slip vs locker differentials. Learn how each works, pros and cons, and which is best for your build.

A short article explaining the main differences between open and limited slip differentials.

Advantages of using Speedway Motors weld-on rear disc brake kit for a Ford 9-Inch rear end. Learn some tips for installation. This kit includes IMCA approved brake calipers.

Dive into some of the history and unique differences between Ford and Chevy spindles for solid front axles and what will perform best on your hot rod.

Click to learn about split wishbone, hairpin radius rod, and four bar suspensions. Learn the history and difference between these solid axle suspension designs.

Learn how to assemble the front axle of a sprint car. See what tools are needed for assembly including an angle finder gauge tool and king pin reamer.

Watch as we install a front suspension lowering kit on our 1968 Chevy C10. Upgrades include disc brakes with a 5 on 5” bolt circle as well as 2” drop springs and 2 ½” drop spindles.