SPECIAL INSTRUCTIONS FOR HOT RODS USA
REAR 63-82 CORVETTE BRAKE KIT

Please take the time to review these instructions and if you have any questions please contact our office.  This is addition to Wilwood’s rear brake kit and the emergency brake cable instructions.  It is also advisable that you read frequent asked questions and the brake article on our website, so you may understand about your brake system. 

1.       Remove stub axles from trailing arms.  This can be done by using an axle puller or by pressing the axle shaft out with a press.  If you press the axles out it is important that you use a special adapter that bolts to the threaded portion of the axle shaft.  These axles are hollow so if the threaded area is not protected it will collapse and damage the threads.  These threaded adapters can be purchased at most Corvette shops.

2.       Remove stock emergency brake assembly and the four (4) 3/8 studs that hold the assembly together.

3.       Install emergency brake cables on to the clip in back of the emergency brake assembly.  The stainless cables need to be installed at this time, because once the ebrake assembly is installed you will not be able to put the cable in the clip.  See instructions provided in the emergency cable kit.

4.       Install part number 2488663A between the trailing arm and the ebrake assembly provided in this kit.    Use the 3/8 grade bolts provided to hold the e-brake assembly to the trailing arm.  Nyloc on the drive shaft side of the trailing arms.

5.       Install ½ “ wheel studs part number 230-2000 in your axle.  “Most” of the time it is just a simple drill and re-tap of existing holes.  In some cases it is necessary to drill and tap new holes.  Torque bolts to 65 pounds.  Install new bearings on axle and install it on the trailing arm.

6.       Install rotors to axles as shown in Wilwood’s instruction sheet.

7.       Install 3/8IF x 1/8” NPT part number HRF 7600043 fittings in the Wilwood calipers, use liquid Teflon to seal the treads, tighten them with moderate torque being careful not to strip the treads in the aluminum calipers.   We have optional stainless steel brake line kit part number HRB 2490063K, which has two 18” stainless lines –3 x 90^ -3, two 7/16-20 brake adapters for the brass block on frame and two –3 x 1/8” NPT male adapter s for the calipers.

8.       Attach brake lines to calipers, carefully tip the caliper at 30-45 degrees so the bleeders are up.  Bleed your brake lines in the normal manner. 

9.       Install caliper in horizontal position on caliper bracket.  Follow Wilwood’s instructions.

10.    Check your system to make sure that you do not have a built in residual valve.   Drum brake systems will have a residual valve in either the master cylinder or in your brake system.  This 10 pound residual needs to removed.  Testing can be done by pressing your brake pedal several times, then checking the rotor to make sure it is free from any drag. 

11.     Check system for leaks and inspect bolts.

Due to the large trailing arms the calipers can not be installed in the normal 45 degree angle for proper bleeding of the brake system.  Very careful attention needs to be taken not to twist the stock brake lines.  You may substitute flexible lines on the trailing arm to help solve this problem.  Optional stainless steel flexible brake line kit part number HRB 2490063K can be purchased by call us.

If you have any question please call our tech line at 888-876-6666.

Mailing Address: P.O. Box 872373, Vancouver, WA 98687-2373 * Phone: 360-546-0624 * Fax: 360-260-1100