FordPartsGiant.com offers the wholesale prices for genuine 2008 Ford F-450 Super Duty parts. Parts like Reverse Clutch and Components are shipped directly from authorized Ford dealers and backed by the manufacturer's warranty. Parts fit for the following vehicle options. Engine: 10 Cyl 6.8L EFI, 8 Cyl 5.4L, 8 Cyl 6.4L Diesel Twin Turbo. Transmission: 5-Speed Automatic Transmission 5R110W - HI/Torque, 5-Speed Automatic Transmission 5R110W NAAO, 5-Speed Manual Transmission-Tremec TR4050, 6-Speed Manual Transmission M6HD-W, 6-Speed Manual Transmission Z/F S6-650.