Front

Brake Pads:

NOTE: GM replacement brake lining material is recommended for all GM vehicles to maintain the balance between front and rear brake performance. GM replacement brake parts have been carefully selected to provide the proper brake balance for purposes of both storing distance and controllability over the full range of operation conditions. Installation of front or rear brake lining material with performance different from that of the GM, or equivalent replacement parts recommended for this vehicle can change the intended brake balance of this vehicle.

REMOVE OR DISCONNECT
1. Two-thirds of brake fluid from master cylinder.
2. Raise vehicle and suitably support.
3. Mark relationship of wheel to axle flange.
4. Wheel and tire.

Compressing Piston Into Bore:

5. Compress caliper piston into caliper completely.
6. Bottom caliper bolt.
7. Pivot caliper body upward.
8. Inboard and outboard pads from anchor bracket.
9. Pad retainers. Inspect Caliper bolt suspension boots for cuts, tears, or deterioration. If damaged, replace pin boots. Refer to Caliper Anchor Bracket Repair. Piston boot for deterioration. If damaged, Overhau1 caliper. Caliper pin bolt for damage or corrosion. Replace if damaged or corroded. Do Not attempt to clean away corrosion. Corrosion is typically caused by damaged pin boots.

INSTALL OR CONNECT
1. Bottom the piston into caliper bore. Use a C-clamp over caliper and piston, tightening it slowly to press piston into bore. Be careful not to damage piston or piston boot.

Lifting Boot To Remove Trapped Air:

2. After bottoming piston, use a small plastic or wood tool to 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.
3. Pad retainers. If installing new brake pads, discard the used pad retainers and use new retainers supplied in pad kit.
4. Inboard pad into caliper anchor bracket.
5. Outboard pad into caliper anchor bracket with wear sensor at trailing edge of pad during forward wheel rotation.
6. Pivot caliper down and install lower pin bolt. Make sure caliper bolt boot is properly positioned before installing bolt, or boot damage may occur. Tighten Caliper pin bolts to 85 Nm (63 ft. lbs.)
7. Wheel.
8. Lower vehicle.
9. Apply approximately 778 N (175 lbs.) force three times to brake pedal to seat pad.