OER Parts offers a wide selection of Engine Dress Up Components for your 1984 GMC C1500. OER Parts offers 1984 GMC C1500 Dress Up Bolts, 1984 GMC C1500 Dress Up Kits, 1984 GMC C1500 Oil Breathers, 1984 GMC C1500 Oil Caps, 1984 GMC C1500 Oil Filler Tubes, and 1984 GMC C1500 Plug Wire Retainers.