How to replace the rear brake pads 2004 Grand Prix GTP

 Remove the wheel and expose the brakes. Remember, safety first - make sure your vehicle is properly supported before beginning any work.

Take off the caliper by removing the two bolts (14mm) on the back side. The caliper will still have the brake lines connected, you may want to hang it with some wire or something. Don't let it hang from the brake lines.

 The new pads will be thicker than the old ones - you'll have to push the piston back into the caliper to make room for them. A large C-clamp works well for this, just push it back in SLOWLY.

Note: Keep an eye on your brake fluid reservoir level - you'll be pushing the fluid back through the lines and you could overflow it if you're not careful.

 Pry out the old brake pads and then remove the two clips:

 Inspect your rotors - if they have gouges in them, they should be replaced.

Reinstall the two clips and push in the new pads up against the rotor.

Note: When you buy the new pads, you'll get 4 of them (two for each wheel). Two of the pads have what is called a "squeal shim", the other two don't. Use one of them on each wheel - they are to warn you when the pads need replaced again and emit a "squeal" if they get too thin.

Reinstall the caliper using the two 14mm bolts. You may have to hold the square heads of the pins as you turn the bolts.

 Once everything is back together, push your brake pedal slowly a few times to seat the piston onto the pads. Once you drive the car, everything will adjust.

Reinstall the wheel and you're done!