Fitting Vehicle Options: 63 - REG CAB CHASSIS WHEEL BASE 1, 64 - REG CAB CHASSIS WHEEL BASE 2, 8 - HD DODGE 4WD, 93 - CREW CAB W.B.4, DF2 - 6-Speed Automatic Transmission Aisin AS69RC HD, DF3 - 6-Speed Automatic Transmission Aisin AS66RC HD, DFX - 8-Speed Automatic Transmission 8HP75-LCV