Swift Rear Coil Spring - Bulletproof - 5.0" OD x 11" Tall - 175 lb. POWER-CORD-RM 1958-1959 GMC FM350

1958-1959 GMC FM350

rotor and bronze gearO-ring seals can be added to modified blocks to improve oil pressure controlSpecial oil tract improves lubrication to the distributor and cam gearShaft is guided by a sealed ball bearing and an extra long sintered bushingOversized polished steel shaft with a QPQ coating for friction reductionAdjustable slip collar for engines with modified deck heightsCNC machined billet aluminum housing and Dupont Rynite base0

Extra Soft

This is the ideal spring for customers looking for a performance spring

eliminating the possibility of hood flutter while adding a rugged muscular accent

Swift Rear Coil Spring - Bulletproof - 5.0" OD x 11" Tall - 175 lb. POWER-CORD-RM 1958-1959 GMC FM350PURPOSE BUILT FOR THOSE OF YOU PUTTING MORE STRESS ON A SPRING THAN HOW IS CONVENTIONALLY USED. WE SOUGHT AFTER A NEW APPROACH IN DEVELOPMENT FROM OUR REGULAR SUSPENSION SPRING. 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