GMPartsGiant.com offers the wholesale prices for genuine 2005 GMC Yukon XL 2500 2WD parts. Parts like Engine & Transmission 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 4.8L, 8 Cyl 5.3L, 8 Cyl 5.3L Flex, 8 Cyl 6.0L, 8 Cyl 8.1L. Model Code: 3/4 TON.