Quick Change Gears

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

Tim talks about our Winters quick change rear end & components.

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.

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 to determine the quick change R&P ratio without opening up the rear in street cars with quick changes, sprint cars, modifieds, late models and GOTRA cars.

Take your crate motor racing to the next level with these tricks and tips that won't get you in hot water with tech officials!

Not sure what to get that race car driver in your life? Don’t worry, we’ve got your back this holiday season with our 2023 gift guide!

Little is thought of your engine’s starter until it refuses to turn your engine over at the worst possible moment. Today’s powerful mini starters can crank the biggest engines with ease. Learn how in our buyer’s guide.

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

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