Speedway Motors’ Project Chevelle: Disk Brake Install

Our friends at Speedway Motors are back again with another installment of their Project Chevelle series. They have been giving their ’72 Chevelle the good stuff with Josh Sullivan, the Product Manager for the muscle car market, taking the helm. With permission, we are reprinting the company’s latest tech and install video on Speedway’s Deluxe Disc Brake Kit for 1964-74 GM A-bodies. You can view the original article and video at: Project Chevelle Episode 6: Disc Brakes

After getting the control arms and drop spindles installed last time, we are dying to see what it looks like on the ground. Today we are working with the Speedway Deluxe Disc Brake Kit for 1964-74 GM A Body.

We are switching to Speedway’s G-Comp 2-inch drop spindles for this disc brake conversion. The original GM drum brake spindles have the boss bolted to the top for the backing plate. The boss is thicker on a drum brakes spindle than a disc brake spindle. Disc brake caliper brackets will not fit on a drum brake spindle. You can adjust the spindle to make it work, or Speedway carries a disc brake factory GM spindle option that has the boss shortened as well as the G-Comp option.

We went with the G-comp spindle that allows you to bolt it all together plus added geometry.

The Disc brake kit fit right onto the G-Comp spindles. Next step it taking over to the alignment shop to confirm we are set!

You can find this kit, and many others like it at SpeedwayMotors.com.

Make sure to check back in with us at Street Muscle Magazine, and stay up to date on everything muscle.

About the author

Vinny Costa

Fast cars, motorcycles, and loud music are what get Vinny’s blood pumping. Catch him behind the wheel of his ’68 Firebird. Chances are, Black Sabbath will be playing in the background.
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