Swift Bulletproof Coil-Over Spring - Barrel Type - Bulletproof - 2.5" ID x 16" Tall - 175 lb. RG100032XL Tubes are extra long so

Tubes are extra long so they can be fit to your application

1970-1974 GMC C35/C3500 Pickup

pictures & detailed instructions

Thicker oil film at operating temperature than a petroleum 10W40

Swift Bulletproof Coil-Over Spring - Barrel Type - Bulletproof - 2.5" ID x 16" Tall - 175 lb. RG100032XL Tubes are extra long soPURPOSE BUILT FOR THOSE OF YOU PUTTING MORE STRESS ON A SPRING THAN HOW IS CONVENTIONALLY USED. WE SOUGHT AFTER A NEW APPROACH IN DEVELOPMENT FROM OUR REGULAR SUSPENSION SPRING. Swift Springs manufactures springs with differing rates for a variety of circle track racing applications. With options for both dirt and asphalt tracks, Swift has a wide range of coil spring formats, including coil over, dual rate, bump springs, and more. Swift Springs