OER Parts offers a wide selection of Plugs & Wires for your 1963 GMC 2500 Series. OER Parts offers 1963 GMC 2500 Series Universal Spark Plug Wires, 1963 GMC 2500 Series OEM Style Spark Plug Wires, 1963 GMC 2500 Series Date Coded Spark Plug Wire Set, 1963 GMC 2500 Series Non-Dated Spark Plug Wire Set, 1963 GMC 2500 Series 6 Cylinder Spark Plug Wire Set, 1963 GMC 2500 Series 8 Cylinder Spark Plug Wire Set , 1963 GMC 2500 Series Spark Plug Boot, 1963 GMC 2500 Series Spark Plug Wire Puller, Spark Plug Gapper, 1963 GMC 2500 Series Spark Plug Hole Thread Chaser, Accel Shorty Plugs, and1963 GMC 2500 Series E3 Spark Plugs.