Wilwood's D11 four piston calipers are a direct bolt-on replacement for the original equipment Kelsey-Hayes calipers on all 1965-67 Ford Mustang, Fairlane, Ranchero, Falcon, Comet, and Mercury Cougar.

Forged billet aluminum bodies, internal fluid crossover, stainless steel pistons, and high-temperature seals put an end to the rust, leaking, bore pitting and seal failures that plague the OE caliper design. D11 calipers can use factory-style brake pads, and fit in stock location with original brackets and rotors.