70 Challenger. New rear brakes, drums turned, linings arc. All new self adjusters. Very hard pedal at top of travel when braking. Emergency cable adjusted tight. Everything good shape and well lubed.

Parking brake on anything more than a very modest slope,,,going forward or backward almost worthless.

Our 300B with a no park torqueflight and driveshaft actuated brake will lock the rear wheels at 30mph and hold on any slope.

How well does your E Body or any other rear wheel brake system perform. If good, what is the secret?