JCS1898T Coil Spring Set for Dodge Ram 2500: 1995 - 2002, Dodge Ram 3500: 1994 - 1995, 1997 - 2002 TRW coil springs are designed to OE specification in order to provide a constant rate for original performance and allow for installation to the chassis the same way as the OEM. Our springs also go through magnetic particle inspection for controlled metallurgical processes. - Every TRW part has four levels of testing/technical/audit review before approval is given including endurance testing of 500K cycles - TRW range of coil springs ensure optimal road hold in all driving situations and under varying load conditions - Powder coated for maximum corrosion resistance and improved appearance