Swift Bump Spring Cup - 2.3" OD Flat Wire Springs - 5/8" Hole 93121 you can be assured that

you can be assured that Remflex exhaust gaskets will work properly the first time

Superb Energy Delivery WhileProviding Highest RFI/EMI Suppression

Quad 4-1/4 in Polished Tips

Raised bottom

1987-1989 GMC G2500

Swift Bump Spring Cup - 2.3" OD Flat Wire Springs - 5/8" Hole 93121 you can be assured thatDesigned for use with 2. 5" O. D. flat wire bump springs. Sold individually. (NOTE: Image for Reference only) 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 superior engineering has provided the next generation of motorsports