Swift Rear Coil Spring - 5.0" OD x 14" Tall - 225 lb. 1142204 New main jets are included

New main jets are included

270 in Bore

Then use the Rear Mount Installation Kit (11475) to drill and tap the axle location and you are done

Silverado (08-20)

Swift Rear Coil Spring - 5.0" OD x 14" Tall - 225 lb. 1142204 New main jets are includedINCREASE TRACTION, LESS UN SPRUNG MASS, MORE STROKE, INCREASED HANDLING. THE ONLY THING YOU WILL BE LOSING IS TRACK TIME. 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