Mercury Axle Housings

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.

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

How to replace sway bars in a Mercury Comet and the advantages that come with it.

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!

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

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.

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!

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.

Mick Rau has a garage full of cool cars, but this Hirohata-inspired Merc is a standout.