1973 - 1987 GMC C10 / C15 / C1500 (Fits 1.0" Rotors) 2WD ONLY. 1973 - 1987 Chevrolet C10 / C15 / C1500 (Fits 1.0" Rotors). This Kit will allow you to lower your truck 6" in the front and 7"-8" in the rear for the perfect look you are looking for, With Spindles, Drop Coils,Flip Kit,Shackle including 4 Shocks (Fits 1.0" Rotors).