Wilwood

D8-4 Rear Caliper

( One FOUR PISTON Caliper )

We have other auctions for Rear Sets

or order ( 2 ) and simply message

us that you want (1) LH and (1) RH

D8-4 Rear calipers are a direct bolt on replacement for the OE

factory 4 piston rear calipers on all 1965-82 Corvettes.

Forged billet aluminum bodies, stainless steel pistons, and high temperature seals put an end to the rust, bore pitting, and seal failures that plague the original cast iron caliper design.

D8-4 calipers mount in the stock location over stock rotors and use the original type D8 brake pads. These calipers fit inside 1967 and later production steel rally wheels and most of the later model alloy wheels. Original steel “JK” code wheels from 1965-66, and some aftermarket alloy replica wheels, will requires a 3/16” or thicker wheel spacer for clearance.

D8-4 calipers use the same overall piston volumes as the original calipers. Other than 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.

D8-4 calipers are the product of Wilwood’s in-house FEA design and 3-D modeling technology.With its unyielding strength and superior piston design,the D8-4 generates positive pedal response and high clamping efficiency with a substantial weight savings.

Product Specifications

Rotor Compatibility

Rotor Width(In):

1.25

Maximum Rotor Width(In):

1.25

Minimum Rotor Width(In):

1.17

Maximum Rotor Diameter(In):

11.75

Minimum Rotor Diameter(In):

11.75

Brake Pad Specifications

Brake Pad Type 1:

Brake Pad Type 2:

Brake Pad Type 3:

Total Pad Area (in²):

Total Pad Volume (in³):

3.9

Pad Dimensions & Part Numbers

Pad Dimensions for the D8-4 Caliper Rear

Piston Specifications

Piston 1 Bore(In):

1.38

Piston 2 Bore(In):

1.38

Piston 3 Bore(In):

Total Piston Area (in²):

3.00

Mounting Specifications

Mount Type:

Lug

Mount Side:

Universal

Mount Center(In):

5.16

Mount Hole Size(In):

0.47

Mount Height(In):

2.99

Inlet Thread Size:

1/8-27 NPT

Mount Dimensions & Part Numbers

Ebay (not us) Is now adding Internet sales tax to orders.

It is being done to all ebay sales. (Not just ours)

DEAR EBAY SHOPPER ... We just revised many of our ads ( WILWOOD and QA1 )

from 3 day handling time to 30 day handling times... This is 100% due to the COVID

ISSUES for the past 12 months.

MOST OFTEN we can ship in 1-3 days .... and we

will WHENEVER POSSIBLE ... Notify us when your order is URGENT and we will do

our best for you ....WE WILL REFUND ANY ORDER that you ask for a REFUND.

even have COMPETITORS ship your order for us when they have STOCK and our 7

warehouses have COVID Quarantine issues . Davis Motorsports of Reno and GoRacin

Racers Emporium. have been in business since 1958.

The HANDLING TIME is only when we have to USE DIRECT SHIPMENT when no-one

else has your part numbers .The handling time will revise from week to week based on

current stock. We sell approx 200 Wilwood and QA1 kits per week and often the in stock

levels change from hour to hour... THANK YOU ...you are our very valued customer