GMPartsGiant.com offers the wholesale prices for genuine 2005 GMC Sierra 1500 Hybrid 2WD parts. Parts like Nameplates are shipped directly from authorized GM dealers and backed by the manufacturer's warranty. Parts fit for the following vehicle options. Engine: 6 Cyl 4.3L, 8 Cyl 4.8L, 8 Cyl 5.3L, 8 Cyl 5.3L Flex, 8 Cyl 6.0L. Model Code: 1500 EXTENDED CAB STANDARD BOX.