Swift Bump Spring - 500 lb. PowerTrax Traction Systems QA1 Economy GM Pro Coil

QA1 Economy GM Pro Coil Shocks

Pro-Tunnel Ram

904" bores

Engraved Front and Rear: WRANGLER

The result is unsurpassed performance through 750 horsepower

Swift Bump Spring - 500 lb. PowerTrax Traction Systems QA1 Economy GM Pro CoilSwift 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