Ford 9 Inch Dirt Track Differentials

Learn why the Ford 9-inch rear end is the go-to axle for performance builds, and why this legendary rear end is trusted for high-horsepower applications

Need help with rear end identification for your muscle car or hot rod? Learn how to identify 9-inch Ford housings and how to measure your axles with our diagrams.

In this video, we go through the process of measuring and cutting 9" Ford axles.

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

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.

Explore dirt stock car racing’s key terms, classes, rules, parts, and tips for success in this ultimate guide for new competitors.

Learn how to assemble one of our bolt on nine-inch Ford disc brake kits in this step-by-step guide.

We help determine what are the best 10-spline quick change gear ratios for your street or racing needs