Replacement

CAUTION: GM replacement brake lining mateial is recommended for all GM vehicles to maintain the balance between front and rear brake performance. GM replacemeng parts have been carefully selected to provide the proper brake balance for purposes of both stopping distance and controllability over the full range of operating conditions. Installation of front or rear brake lining material with performance characteristics different from that of the GM replacement parts recommended for this vehicle can change the intended brake balance of this vehicle and adversely affect brake performance.





REMOVE OR DISCONNECT
1. Brake Caliper.





2. Outboard shoe and lining. Use screwdriver to disengage buttons on shoe from holes in caliper housing.
3. Inboard shoe and lining.

INSTALL OR CONNECT

NOTE: Before installing new shoe and linings, use denatured alcohol to wipe outside surface of boot clean.

1. Bottom piston into caliper bore. Use a C-clamp over caliper housing to drive piston in. Tighten clamp slowly to drive piston into caliper bore. Take care not to damage piston or piston boot with C-clamp. After bottoming piston, lift inner edge of boot next to piston and press out any trapped air. Boot must lay flat. Make sure convolutions are tucked back into place.





2. Inboard shoe and lining by snapping shoe retaining spring into piston inside diameter. Shoe retainer spring is already staked to the inboard shoe. Shoe must lay flat against piston. After installing shoe and lining, check that boot is not touching the shoe. If there is contact, remove the shoe and lining and re-seat or re-position the boot.





3. Outboard shoe and lining with wear sensor at trailing edge of shoe. During forward wheel rotation, the back of the shoe must lay flat against caliper.
4. Caliper.
5. Apply a firm force three times to the brake pedal to seat the linings.