GMPartsGiant.com offers the wholesale prices for genuine 2017 GMC Sierra 1500 Denali 2WD parts. Parts like Springs/Rear 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 6.2L. Model Code: 1500 CREW CAB, 1500 CREW CAB STANDARD BOX.