GM 25832146 Front Brake Rotor Assembly

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To inspect the brakes, start by loosening the wheel lug nuts and raising the vehicle on jackstands. Remove the brake caliper, suspending it out of the way with wire. Visually inspect the disc surface for score marks and damage, and check for disc runout using a dial indicator. If necessary, have the disc refinished by a machine shop. When replacing brake pads, it is recommended to resurface the discs for a smooth finish. Make sure not to machine the disc below the specified minimum thickness. To remove the front hub and bearing assembly, place it on a solid work surface and separate the disc from the hub. For installation, assemble the disc and hub, tighten the bolts to the specified torque, and then follow the reverse steps of removal. Finally, install the wheel and lug nuts, lower the vehicle, and tighten the lug nuts. Test the brakes before driving the vehicle.

After raising the vehicle on jackstands, the brake caliper should be removed and suspended out of the way with wire.