How To Replace Rear Caliper Brackets 01-08 GMC Sierra 2500 HD
Difficulty: Advanced · About 150 min · Gmc Sierra
Replace the rear brake caliper brackets on a 2001–2008 GMC Sierra 2500 HD, supporting the calipers and cleaning slide hardware before tightening the brackets and verifying firm pedal feel.
Tools you will need
- A Piece of Pipe (for leverage)
- Torque Wrench
- Jack Stands
- 18mm Socket
- Anti-Seize Grease
- Ratchet
- Wire Brush
- Floor Jack
- 22mm Socket
- T55 Torx Socket
- Flat Blade Screwdriver
- Bungee Cord
Parts and supplies
- Rear brake caliper brackets
- Brake pad slide hardware
Steps
- Raise the truck and remove the wheel
Loosen the lug nuts with the vehicle on the ground. Lift the rear at an approved point, support it on jack stands, then remove the wheel and center cap.
- Remove the caliper and pads
Remove the caliper slide bolts and retract the piston enough to free the pads. Support the caliper with a bungee so the brake hose is not stretched, then remove the pads and slide hardware.
- Remove the old bracket
Remove the bracket bolts with the appropriate socket and leverage, then lift the old bracket away. Keep the rotor and hub clean while the bracket is off.
- Install the replacement bracket and slides
Position the new bracket and start its bolts by hand. Tighten the bracket fasteners to the vehicle specification, clean the slide surfaces, and apply suitable lubricant only to the specified contact points.
- Reinstall the pads and caliper
Fit the pads and slide hardware, inspect the caliper bolts, and reinstall the caliper over the rotor. Tighten the slide bolts to specification and make sure the caliper moves freely on its guides.
- Reinstall the wheel and test braking
Mount the wheel and hand-start the lug nuts. Lower the truck and tighten the lugs in a star pattern to specification, pump the pedal until firm, and perform a low-speed brake check in a clear area.
Check your vehicle’s repair manual for exact specifications and fit.