Fits: GMC C-20, C-30 1973,1974,1975,1976,1977,1978,1979,1980,1981,1982,1983,1984,1985,1986,1987 and C-30 Dually Only 1988,1989,1990,1991
- Front 3" Drop Spindles
- Rear 4"Shackle and Hanger
- Notes: Fits 8 lug 2wd only, Squarebody Style Only, 28" Recommended Front Tire Size, If You Are Unsure What Caliper Style You Have Contact Us Prior To Purchase We Are Happy To Help, See Pic In Listing For Reference
If your shock is mounted outside the frame rail THIS KIT WILL NOT WORK. See pic for reference.