MoparPartsGiant.com offers the wholesale prices for genuine 2008 Dodge Ram 3500 Pickup parts. Parts like Differential Assembly , Front are shipped directly from authorized Mopar dealers and backed by the manufacturer's warranty. Parts fit for the following vehicle options. Engine: 6 Cyl 5.9L Diesel, 6 Cyl 6.7L Diesel, 8 Cyl 5.7L. Transmission: 4-Speed Automatic Transmission, 5-Speed Automatic Transmission, 6-Speed Manual Transmission, Automatic Transmission.