Shop for 7T-0571 CAT SPRING at wholesale rates, from the primary dealer and supplier of heavy-duty parts.Specifications:"Material Description: Steel Notes: Solid Length: 51.37, Free length: 80.44, Assembled Length: 78, Load at Assembled Length: 10.7, Total Coils: 33.38, Spring Rate NMM: 4.38 Wire Diameter - C (in): 1.499 Coating: phos/oil "