the threaded holes are for removing the rotor. If the rotor does not come off with ease, a bolt of the same size can be inserted in and the rotor "pryed" off, using a socket set.
In order to remove any rotors that stuck on a vehicle, usually you have to hit the rotor hub part with a large hammer being careful not to hit the wheel studs. This is done to break the seal of rust that builds up which keeps the rotor stuck. On some occasions, the rotor will have little threaded holes in which you have to drive the correct size bolt through until the rotor pops off.
14 mm
Not sure about the hole but the stud size is M12 X 1.25
On the face of the rotor are 2 holes. You need to simultaneously screw in 2 hex bolts, size: M8x1.25mm. The bolts will push the rotor off the wheelbearings. From the Advance auto store guy & Jim's dad.
No, you do not need to remove the spindle. The rotors are semi-pressfit to the spindle. Do NOT try to PRY them off. You will just get frustrated. Instead there are two smaller threaded holes in the rotor in between the wheel studs. A bolt (or two and i forget the exact size) can be threaded into these alternating evenly between the two thusly "pressing" the rotor off the spindle. It really rather easy and should not involve much effort at all. You can use the lug nuts facing backwards to press the rotor back on in the same manner. DON'T use the wheel to press the rotor back on. It's not good for the wheel and it doesn't make sense to use a 350 buck wheel as a press.
you have to remove the pressed in studs ,and tap the hole with the proper thread size for the threaded stud. this may require drilling the heads with the proper size drill, for the tap size you need. you must make sure that the new threaded studs are bigger than the pressed in ones, or you won't be able to thread the stud holes.
bolt pattern and size is different for the pulley on the rear and the rotor on the front
i need knows wtah size is rear and front brake discs.
What size is the nut on the front break system to take the rotor off. Of my 2002 Trailblazier LT 4.2l 4x4.
Dissasemble the hub the pull off the rotor with the lugs then use a hamer to punch out the lugs out of the rotor
The front hub takes a 35mm deep socket. (It is not necessary to remove the hub to change the rotor.)