All of our Body Pieces are made from grade 1006 steel, which is slightly heavier but three times as strong as original. Applications: Chevrolet C10 Pickup, 61-74 C10, 75-86 C20 Pickup, 61-74 C20, 75-86 C30 Pickup, 61-74 C30, 75-86 K10 Pickup, 61-74...