GMPartsGiant.com offers the wholesale prices for genuine 2003 Chevrolet Tracker 4WD parts. Parts like Automatic Transmission Drive, 2nd Brake are shipped directly from authorized GM dealers and backed by the manufacturer's warranty. Parts fit for the following vehicle options. Engine: 4 Cyl 2.0L, 6 Cyl 2.5L. Model Code: 4 DOOR, CONVERTIBLE.