OER Parts offers a wide selection of Manual Transmissions & Parts for your 2003 Chevrolet Truck. OER Parts offers 2003 Chevrolet Truck Bearings, 2003 Chevrolet Truck Boots, 2003 Chevrolet Truck Complete Transmissions, 2003 Chevrolet Truck Flywheel, 2003 Chevrolet Truck Gaskets, Seals & Filters, 2003 Chevrolet Truck Gears, 2003 Chevrolet Truck Hardware, 2003 Chevrolet Truck Shift Knobs, 2003 Chevrolet Truck Shift Linkage, 2003 Chevrolet Truck OE Shifters, and 2003 Chevrolet Truck Performance Shifters.