Modern Muscle Differential Fluid Change Kits

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

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

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

How proportioning valves work, fixed vs adjustable valves explained, and how to reset a prop valve.

Fuel injection is here to stay and we delve into the benefits of such retrofit systems for your classic muscle car or street rod in our EFI retrofit buyer's guide!

This article demonstrates how to install a complete Winters quick change kit with additional parts including birdcages, brackets, and calipers for a modified race car.

Learn how to convert an engine using a Carbureted LS Conversion Kit, along with tips for a smooth install. Read more on the manifold and timing control module, which comes with an MSD ignition control box and wiring harness.

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

Learn about performing an LS Swap in a 1972 Chevelle in this tech article. We'll discuss lessons learned from our Chevelle engine swap using a 500-horse 6.0.

Looking for a cost effective way to upgrade the front of your car? This article shows the steps to replace upper and lower stock control arms with tubular control arms for added suspension strength.