Swift Rear Coil Spring - Bulletproof - 5.0" OD x 11" Tall - 225 lb. 935172 They can be so restrictive

They can be so restrictive that the filter by-pass valve can open

Rocker Switch Mount

1979-1991 GMC K1500

For OE replacement and high performance street use

1/2 in NPT Female to 8 AN Male

Swift Rear Coil Spring - Bulletproof - 5.0" OD x 11" Tall - 225 lb. 935172 They can be so restrictivePURPOSE 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