Swift Rear Coil Spring - 5.0" OD x 14" Tall - 175 lb. Crank Pulley 4L60E through 4L80E will require

4L60E through 4L80E will require Hurst intall kit 1175498

Place flywheel locking tool onto rear block dowel pins to prevent the flywheel from turning while tightening or loosening balancer bolts

Noise level may exceed 95-decibel standard

Deep - Zinc Iridize

1959-1959 GMC 150

Swift Rear Coil Spring - 5.0" OD x 14" Tall - 175 lb. Crank Pulley 4L60E through 4L80E will requireINCREASE 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