Air Lift Air Springs 58517 This replacement air spring is designed to replace air spring when it is heavily damaged. It is made from rubber with synthetic fabric reinforcement which ensures extreme durability. This bellow features genuine high strength rustproof composite end caps. It consists of steel girdle ring and has high burst pressure. REPLACEMENT BELLOWS; FOR PN[75672]; Replacement Bellow; For PN[75672]; Air Lift Replacement Air Spring Double Bellows Type