How to Replace Rear Disc Brakes in a Chevy Impala

The Chevy Impala has a basic disc brake setup in the rear of the car. It is easy to replace on your own with basic tools found in your toolbox. Read further to learn how to replace the rear disc brakes on your Impala in about an hour.

Instructions

1

Drain 2/3 of the brake fluid from the master cylinder reservoir to prevent overflow when compressing the piston. Use a syringe or suction gun to siphon the brake fluid and empty into an approved, sealed container.

2

Lift the rear of the Impala off the ground with a car jack. Use a torque wrench to loosen the lug nuts, and take of the wheel and tire assembly. Place the assemblies face up on the ground to prevent damage to the wheels.

3

Reattach two lug nuts to hold the rotor on after removing the caliper. Unscrew the bolt and washer that attach the cable support bracket to the caliper body assembly. Take off the caliper retaining bolt.

4

Rotate the caliper body assembly upwards and fasten to the frame of the Impala with mechanical wire. Disconnect it from the bracket but don't take it out completely. Slip out the outboard and inboard brake shoes and linings, along with two brake lining clips from the caliper support.

5

Turn the piston into the caliper bore with a spanner tool until it seats fully. Turn it back slightly until the tabs are at 6 and 12 o'clock. Press any trapped air out of the boot by lifting the inner edge, located next to the piston assembly.

6

Replace the two pad clips on the caliper support. Grease the inner pad where it makes contact with the piston and mounting surface. Install the new outboard and inboard brake pads and linings, making sure to point the wear sensors down at the leading edge of the rotor.

7

Detach the caliper body assembly from the frame of the Impala. Lay it in position over the brakes and install the bolts. Attach it to the cable support bracket and torque to 32 ft. lb. Replace the wheel assembly, lower the Impala and pump the brakes.