Dirt Track Speedway Rearend Spools Parts

Explore dirt stock car racing’s key terms, classes, rules, parts, and tips for success in this ultimate guide for new competitors.

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

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

Rear axle assembly can be difficult, but Jason Martin is here to help simplify the process. Learn how to square the rearend of your sprint car.

A full floating rear end is not just for dedicated track cars anymore. Many high horsepower street cars will be well suited to make the move to a Grand National style full floating axle. Read on to see why.

In this budget build, a GM rear end is upgraded in order to hold 400+ HP. See how spherical bushings are replaced in a used 8.5” GM 10 bolt rear end.

Speedway Motors employee Pat O. talks about shock ends.

Learn how to assemble a rear axle assembly as we put together ours for the 410 Sprint Car Build. Our team of builders continues to make progress on the car!

Jason Martin explains how to square the front end of a sprint car. He walks through the step by step process of squaring the front axle, adjusting the radius rods and setting the side to side. Check it out!

Check out our 6th episode of the 410 Sprint Car Build series. Last time we assembled the rear axle and now we are installing it!