Hi there, I had an awful sound coming from my left-rear wheel and I knew it was coming from the brakes. I planned on doing the rear brakes today, and my new digital camera arrived yesterday, so I thought, why not do a tutorial on changing brake pads.
In this, Ill show you exactly how to change your brake pads. Also, if you need an immediate fix (like me), do not be scared to use cheap autozone brake pads. I did, and they are great, solid, and absolutely quiet. Ok, here we go:
Step 0: Buy brake pads and brake lubricant (one pouch per axle), and remeber dont be scared to buy cheap $26.99 pads from a'zone. Also, if you wish, to prevent squeeling, you can shave the leading and trailing edge of all your brake pads down to a 45 degree angle.
Step 1: Chock your wheels, apply ebrake, break your lugnuts, jack up your Lex, finish removing lugnuts and remove wheel.
Step 2: There are two 14mm bolts on the backside of the caliper, remove those by turning them clockwise.
Step 3: Now you can lift off the caliper and place it on some conveniently located thing. You will see two anti squeel clips on each brake, take those out. You are now free to pull out your old pads. Just simply pull on them and they will slide out with a little resistance.
Hopefully, your brake pads will not look NEARLY as bad as mine
Step 4: Lube up the backside of the brakepads real nice. Then match up where the pads go and slide them into place, and put those clips back into place (or, if you are using new hardware, put in those new ones.)
Step 5: In order to make your caliper fit onto your new pads, you will have to force the piston back inside. Take some random piece of strong metal and place it ontop of the piston. Then grab your 3" C-clamp (you have your 3" C-clamp dont you!?!?!?) and tighten it up, but not to the point where you are forcing the piston back inside. Go pop your hood and take off your brake fluid resoiver and place some rags around the opening just in case fluid decides to come out (you prolly wont have to worry about this if you are only doing 1 or 2 brakes). Now, start turning the clamp and forcing the piston inside until it becomes flush with the rest of the caliper surface.
Step 6: Remember where you removed those 14mm bolts? Go back there and push that inward so you can bolt up the calipers. Now just slide on the calipers and bolt them back up. My torque wrench was acting up so I just tightened with my socket wrench as tight as it would go (but not too tight)! I think its supposed to be 22 ft/lb of torque, so if you have a working torque wrench just do that.
Step 7: Bolt yo wheels back up and take her for a drive. BTW, the first time you push the brake, it will go all the way to the floor (this scared the hell out of me!!). But then, your brake system will build pressure and all will be fine.
Good luck to anyone doing this, this is a very easy procedure for anyone with some automotive experience. I would recommend getting all new brake hardware (shim kit) and getting your rotors turned. But since I am totally upgrading my brakes this summer, and since my rotors were in awesome condition, I did neither of these.