You should use the J 42450-A to clean the wheel bearing/hub, use a micrometer to measure the thinnest point of the brake rotor, use the J 41013 to thoroughly clean the rust from the brake rotor flange, refinish the brake rotor, after machining the rotor, use 120 grit aluminum oxide sandpaper and a non-directional rotor finisher, if available, to create a non-directional braking surface, and clean the braking surfaces with GM P/N 12377981 (Canadian P/N 10953463) or equivalent, brake parts cleaner.
By BobGM Specialist
01/11/2022