GMPartsGiant.com offers the wholesale prices for genuine 2007 Chevrolet Avalanche 2WD parts. Parts like Radio Mounting are shipped directly from authorized GM dealers and backed by the manufacturer's warranty. Parts fit for the following vehicle options. Engine: 8 Cyl 5.3L, 8 Cyl 5.3L Flex, 8 Cyl 6.0L. Model Code: 1/2 TON.