Ford F-150 Differentials

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

The pros and cons of a welded diff vs open diff, plus what to know before learning how to weld your differential.

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

In this Tech Tip, a customer asked about finding a set of disc brakes for his 1949 Ford F1 pickup, with one caveat. He wants to use the factory wheels.

Brief review of the different types of Ford alternators and regulators available through Speedway Motors.

Ford’s small block and big block engine families have their share of flexplate differences. We’ll show you what to look for in this buyer’s guide.

How to install AVS side window deflectors on a 2013 Dodge Ram 1500.

Learn how to install a side detent shifter in a 1969 Chevy C10.