OER Parts offers a wide selection of Body Components for your 1989 GMC Truck. OER Parts offers 1989 GMC Truck Truck Bed Parts, 1989 GMC Truck Bed Liners, 1989 GMC Truck Bed Rails, 1989 GMC Truck Bed Strips, 1989 GMC Truck Bed Tonneau Covers, 1989 GMC Truck Bed Undercarriage, 1989 GMC Truck Bed Wood Sets,1989 GMC Truck Mounting Hardware, 1989 GMC Truck Roll Pans, 1989 GMC Truck Spare Tire and Parts, 1989 GMC Truck Stake Pocket Accessories, and 1989 GMC Truck Stepside & Flareside Parts.