FordPartsGiant.com offers the wholesale prices for genuine 2018 Ford Mustang parts. Parts like Transmission & Speedometer Drive are shipped directly from authorized Ford dealers and backed by the manufacturer's warranty. Parts fit for the following vehicle options. Engine: 4 Cyl 2.3L TIVCT DI TC, 6 Cyl 3.7L PFI NA, 8 Cyl 5.0L DOHC EFI Modular, 8 Cyl 5.0L MOD DOHC SEFI NA, 8 Cyl 5.2L. Transmission: 10-Speed Automatic Transmission (10R80), 6-Speed Manual Transmission-3160, 6-Speed Manual Transmission-MT82.