Truck 28 Differentials

GM’s 10-bolt rear axle has been around since the 1960s, here’s how to determine if your junkyard find is worth taking home

A brief overview of the steps Speedway Motors takes to ensure you get a quality differential.

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.

Learn how to ID a Ford 8.8 rear end by tag, width, and code. Compare 8.8 vs 9-inch axles, decode gear ratios, and find which Ford models used them.

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

Tim talks about the process of adapting a full size 1932 Ford Radiator to fit in his 1929 Ford Roadster project.