The Prothane front spring bushings in black for 1971–1987 GM K10–K30 4WD restore the spring and shackle mounting points for those trucks. These vehicle-specific front spring bushings are supplied for the stated model years and intended for installation during suspension service or rebuilds. Fit them when addressing worn front spring mounts on 1971–1987 K10–K30 4WD pickups.
Prothane 71-87 GM K10-30 4wd Front Spring Bushings - Black