What causes the rear differential to go bad?
What causes the rear differential to go bad? The first and most common is loss of differential oil which can cause gears inside the differential housing to break, grind, or even block the rear wheels. However, differentials can fail if they are pushed too hard which means that you have performed numerous burnouts, drag racing, and so on. Can a rear end differential be rebuilt or replaced? Two different mechanics say the rear end needs to be rebuilt or replaced. One says if I'm going to keep it I should rebuild it. Second says I should replace it with a...