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How to Fix Your Dragging Brakes

Go faster and stop wear with these tips on fixing your dragging brakes.
By Joey Gonewin
Photography by Joey Gonewin
Brake Repair Buick Gs Front View
Figuring out how to go faster sometimes means minimizing the things that slow you down-like a brake system that is dragging!
Brake Repair Stock Proportioning Valve
This is the stock GM proportioning valve that came on many late '60s and early '70s A-body vehicles (Chevelle, Skylark, LeMans, and Cutlass) for a front-disc/rear-drum system. If you install discs at all four corners, this needs to be removed and replaced with a proportioning valve for a disc-brake system (or a manual prop valve-as is being done in this story).
Brake Repair Wilwood Proportioning Valve
A Wilwood proportioning valve (PN 260-8419) and some 31/416- and 11/44-inch steel brake lines were acquired to make this improvement. The brake line is available at most local auto-parts stores, and the proportioning valve is available from all the large mail-order houses.

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