Stock Car Differential Third Members

Lucas P. explains how to choose the correct part for a Ford 9" third member build in order to achieve a bulletproof rear. You will find specific recommended parts to use from Speedway Motors.

A brief overview of the steps Speedway Motors takes to ensure you get a quality differential.

Comparing open diff vs limited slip vs locker differentials. Learn how each works, pros and cons, and which is best for your build.

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

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

A short article explaining the main differences between open and limited slip differentials.

In this Tech Tip, John responds to a customer looking to upgrade the 8” stock differential in his Cougar to a 9” open diff.

Need help with rear end identification for your muscle car or hot rod? Learn how to identify 9-inch Ford housings and how to measure your axles with our diagrams.

Now that Project Chevelle is finally making real power, we want it all to get to the ground without breaking anything. Follow along as we install a 9-inch housing, third member, and some trick tubular control arms!

Jared demonstrates how to install a Sweet Manufacturing collapsible steering column in his 3rd gen Camaro. The collapsible portion not only makes the column safer in a crash but also gives you the length adjustment.