Swift Bump Spring - 2500 lb. 1950897 600" long Hi-Tech 5/16" diameter

600" long Hi-Tech 5/16" diameter pushrod handles the requirements of today's all-out race engines

1980-1996 GMC P3500

156 in Rectangular Port

1/4-20 in Gauge Bolt to 1-13/16-16 in Thread

Absolute Maximum Endurance: Exclusive trade-secret endurance processing delivers "near zero" pressure drop after 1

Swift Bump Spring - 2500 lb. 1950897 600" long Hi-Tech 5/16" diameterSwift 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