Driveline and Axles

Learn about how aftermarket transmission coolers can help keep your transmission cool and the different options available for cooling with our expert guide.

Learn the benefits of independent front suspension, or IFS, and how it vastly improves your vehicle’s braking and handling

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

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.

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

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.

Concerned about a transmission swap? Our engine transmission compatibility checker will help confirm what you need to make it happen.

Quick change rears have been around since the 1940s and while many are familiar with them, to others they’re a mystery we’ll help explain

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