Swift Rear Coil Spring - 5 in OD - 12 in Length - 300 lb COM26125-24 Sierra 3500 HD 2010-2007

Sierra 3500 HD 2010-2007

Factory style ignition module accepts factory wiring

Fits 1987-96 305/350 TPI & 1992-96 350 LT1 with center hold down valve covers

Will not conflict with existing transmission tuning

our 2 piece 56 inch Race Ramps won't dig into

Swift Rear Coil Spring - 5 in OD - 12 in Length - 300 lb COM26125-24 Sierra 3500 HD 2010-2007Product Description: Coil Spring Conventional 5 in OD 12 in Length 300 lb in Spring Rate Black Powder Coat Swift Springs was founded in 1997 in Tokyo Japan as a motor sports division of Tokyo Hatsujo Manufacturing Co, Ltd. that has been leading the spring industry since 1924. The purpose was to demonstrate Swift Springs superior engineering in spring by developing the next generation of motor sports suspension coil springs. Swift Springs had to have