Speedway Motors Axle Housings

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

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

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.

Learn how to ID a Ford 8.8 rear end by tag, width, and code. Compare 8.8 vs 9-inch axles, decode gear ratios, and find which Ford models used them.

Get more details on Project Chevelle's 9-inch housing, third member, and tubular control arms installation.

Speedway Motors announced today a list of new products that will be debuted Aug. 5-8 at National Street Rod Association’s (NSRA) 52nd Annual Street Rod Nationals in Louisville, Ky.

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.

With the coil-overs attached, it is now time to make the Chevelle rear whole again. Follow along as Jeff installs a 9" third member and spline axles with a few tips on axle lengths and bolt patterns.

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.

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