Modified Differential Spools

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

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

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

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

How to replace sway bars in a Mercury Comet and the advantages that come with it.

Tim M. has tried to stay true to the vintage route, but sometimes, exceptions must be made. For example, the original oiling system's paper element and canister are functional, but an upgraded system will be more reliable.

Keep your rear cylinders running cool in a high performance engine by installing a water bypass kit to the intake manifold.

How to change brake pads, rotors and calipers using the Mustang II complete brake kit. Replace your drum brakes with disc brakes for performance and better braking ride. For use on Bobcat and Mustang II spindles.

In this Tech Tip, John confirms a customer question regarding the need for a proportioning valve on his ’55 F100 brake build.

LS swaps are nothing new, but they remain a controversial topic. After installing an LS in our Chevelle, we take a look at some of the reasons for and against this trend.