On GM model cars I know you use a Torx socket. You can purchase them at Checker Auto Parts.
On my 2004 c1500 Chevy 2wd the torx socket size is 55. But they are frozen. i could not even get them loose with an air impact. I guess I will try heating it with a torch and hope I don't fry the brake caliper seal.
They are held in place on GM and Oldsmobile with a Torx T-55 bolt. The bolt is held in place with the red colored Loctite, so it will take a good deal of force to remove it, or gentle tapping combined with heat. (A 4' breaker bar worked on my 92 olds.)
The spindle/caliper bracket is threaded.
Remove wheel Re-install 2 lug bolts to hold rotor in place Remove flexible brake line Remove caliper mounting bolts Slide caliper off rotor
first remove the wheel,then remove the brake caliper,then the caliper mounting bracket.then you need to remove the rotor which should just slide off.then you need to remove the axle spindle nut which is in the center of the rotor,then you need to separate the strut from the back of the spindle by removing the two bolts holding it.once you separate the spindle from the strut then there are three bolts that hold the hub in place that you need to take out from the back side of the hub.you will have to slide the axle in a little bit in order to reach these bolts.once you get these bolts out you will have to gently tap on the hub from the back to get it to come free of the spindle housing. then do the reverse to put it back together.
It depends on the vehicle, some vehicles have star headed bolts, some have just regular hex head bolts different sizes, that hold the caliper over the rotor. All you have to do is remove the two bolts that hold the caliper, and then lift the caliper off of the rotor gently.
"Caliper anchor bolts" hold the brake caliper on, they require a 3/8" Allen wrench to remove.
Remove wheel, remove the two bolts that hold the caliper to the bracket, use a C-clamp to compress the piston back into the back caliper and then remove from the rotor.
there should be four bolts on the back of the calipers two of them should hold the pads and the other should hold the caliper remove the pad holder first and then the caliper.
Remove wheel Re-install 2 lug nuts to hold rotor in place Remove flexible brake line Remove caliper mounting bolts Slide caliper off rotor
Most vehicles Remove wheels Re-install 2 lug nuts to hold rotor in place Remove caliper mounting bolts Slide caliper off rotor
Jack up the car and take off the tire. After the tire has been removed, decompress the brake caliper and remove the brake shoes. Remove the 2 bolts attaching the caliper and remove the caliper. There are 2 more bolts left, they hold the caliper mount on. Remove those 2 and the Rotors wil come right off
The caliper bolts are 5/8" and should be torqued to 70 foot pounds when re-mounting.
TO CHANGE THE WHEEL BEARING ASSEMBLY YOU NEED TO REMOVE THE WHEEL THEN LOOSEN THE SPINDLE NUT. REMOVE THE BRAKE CALIPER AND BRAKE ROTOR, ON THE BACK OF THE BEARING ASSEMBLY REMOVE THE THREE BOLTS THAT HOLD IT IN PLACE. UNPLUG THE WHEEL SPEED SENSOR IF APPLICIBLE. REMOVE THE SPINDLE NUT. THATS THE BEST I CAN REMEMBER, ITS BEEN A WHILE.