The D8-6 front calipers serve as a direct bolt-on replacement for the OE factory 4 piston front calipers on all 1965-82 Corvettes.
With forged billet aluminum bodies, stainless steel pistons, and high temperature seals, they eliminate the rust, bore pitting, and seal failures that affect the original cast iron caliper design.
The D8-6 calipers mount in the stock location over stock rotors and utilize the original type D8 brake pads.
These calipers fit within 1967 and later production steel rally wheels and most later model alloy wheels.
Original steel JK code wheels from 1965-66, along with some aftermarket alloy replica wheels, will require a 3/16 or thicker wheel spacer for clearance.
The D8-6 calipers maintain the same overall piston volume as the original calipers, but feature the added benefit of differential bores.
Differential bores counteract pad taper in high temperature racing, and the 6 piston design offers greater pad support.
Aside from a new flexline with an 1/8 -27 NPT end for the new aluminum caliper, no other changes, such as master cylinder output or front to rear bias adjustment, are necessary.
The D8-6 calipers result from Wilwood's in-house FEA design and 3-D modeling technology.
With unyielding strength and superior piston design, the D8-4 generates positive pedal response and high clamping efficiency while providing substantial weight savings.
