204001 Aries Nerf Bars fits: 1988-2000 Chevy C/K 1500, 1988-2000 Chevy C/K 2500, 1988-2000 Chevy C/K 3500, 1988-2000 GMC C/K 1500, 1988-2000 GMC C/K 2500, 1988-2000 GMC C/K 3500. 204001 Aries Nerf Bars Features - Custom designed to fit your vehicle. Strong 3" diameter steel tubing resists dents and dings. Non-skid custom pad for a secure step. Easy to install with no drilling required. Available with stainless steel or powder-coated black finish. Aries Nerf Bars. Aries 204001.