Swift Bump Spring - 7000 lb. Howards Cams This kit includes 16

This kit includes 16

Complete set 9/16-24 x 5/8-18

Center-Center: 9

Transmission Clutch Steel

Calibrate your miniature valve spring tester (5314) with this calibrated test spring

Swift Bump Spring - 7000 lb. Howards Cams This kit includes 16Swift 2" O. D. bump springs offer the highest measurable shock stroke in the industry and, unlike inefficient rubber and foam bump stops, they are resistant to fatigue and heat. 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