Failure to remove the corrosion/scaling may cause an excessive buildup.
YouTube celebrity Chris Fix uploaded a video to YouTube showing how a brake pad is manufactured from the stamping of the backing plate to installation on his vehicle. NRS Brakes allowed Fix to document the complete process at its facilities in Toronto.
It is imperative that when installing brake discs (front or rear) that any excessive corrosion/scaling which may have developed on the axle hub be removed. Failure to remove the corrosion/scaling may cause an excessive buildup, which can create adverse forces that may result in brake vibrations or judder.
Overheating is a rare occurrence, as coolant can last more than 100,000 miles. But over time, it can lose its ability to protect the engine against damage.
Be sure to replace any valve stems that appear to be corroded or severe tire damage can occur.