Studebaker Transtar Axle Housings

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

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.

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

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!

Eagle Motorsports, Inc. put together a how-to video on installing their Stallard SST Rear Axle Assembly.

Learn about the power behind the G-body platform and the steps to upgrade a 7.5" bolt rear end to a 8.5" to withstand high horsepower. See how to change the differential fluid and install new gaskets.

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.

Steve provides a step-by-step guide to install the Speedway Motors GM 10-Bolt Polished Finned Aluminum Rear End Cover.

Eagle Motorsports, Inc. put together a how-to video on assembling their Stallard SST Rear Axle Assembly.

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!