FordPartsGiant.com offers the wholesale prices for genuine 2005 Ford Mustang parts. Parts like Engine Assembly Fully Dressed are shipped directly from authorized Ford dealers and backed by the manufacturer's warranty. Parts fit for the following vehicle options. Engine: 6 Cyl 4.0L SOHC EFI, 8 Cyl 4.6L SOHC EFI, 8 Cyl 5.8L DOHC SC. Transmission: 5-Speed Automatic Transmission 5R55S, 5-Speed Manual Transmission T5OD, 5-Speed Manual Transmission TR3650.