OER Parts offers a wide selection of Plugs & Wires for your 1985 GMC Truck. OER Parts offers 1985 GMC Truck Universal Spark Plug Wires, 1985 GMC Truck OEM Style Spark Plug Wires, 1985 GMC Truck Date Coded Spark Plug Wire Set, 1985 GMC Truck Non-Dated Spark Plug Wire Set, 1985 GMC Truck 6 Cylinder Spark Plug Wire Set, 1985 GMC Truck 8 Cylinder Spark Plug Wire Set , 1985 GMC Truck Spark Plug Boot, 1985 GMC Truck Spark Plug Wire Puller, Spark Plug Gapper, 1985 GMC Truck Spark Plug Hole Thread Chaser, Accel Shorty Plugs, and1985 GMC Truck E3 Spark Plugs.