Well-made auto parts brake drum for chevroletThe brake drum is a kind of cast iron parts.Brake when using hydraulic drive brake shoe (BrakeShoes) around the contact with the brake drum,Website: , produced by contact friction force to suppress the tire rotation to achieve the purpose of the brake. Brake drum composed by the brake plate, brake wheel cylinder, brake shoe, connecting rod, a spring, dowels, brake drum. Currently only common used in the rear.