MoparPartsGiant.com offers the wholesale prices for genuine 2008 Dodge Ram 3500 Pickup parts. Parts like Mounting Bolts 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.