Swift Bump Spring - 500 lb. 931014 1987-1987 GMC R2500

1987-1987 GMC R2500

7L models and 2006-2010 6

The solution to this problem is the use of the MSD Low Resistance HEI Bushing which will pass the secondary voltage from the distributor cap to the rotor without excessive heat buildup

w/Steam Holes

Simple and clean three-wire installation

Swift Bump Spring - 500 lb. 931014 1987-1987 GMC R2500Swift 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