OER Parts offers a wide selection of Car Care Products for your 1970 GMC Truck. OER Parts offers 1970 GMC Truck Cleaning Supplies, 1970 GMC Truck Buckets, 1970 GMC Truck Grit Guard Basic Wash System 3.5 Gallon Black Pail With Yellow Lid, 1970 GMC Truck Grit Guard Basic Wash System 5 Gallon Yellow Pail With Black Lid, 1970 GMC Truck Universal Pad Cleaner, and 1970 GMC Truck Grit Guard Dual Bucket Washing System.