Dually Platform Chrysler AD platform Engine 225 cu in (3.69 L) Slant-6 I6 239 cu in (3.92 L) LA V6 318 cu in (5.21 L) LA V8 360 cu in (5.9 L) LA V8 5.9 L (360 cu in) Cummins diesel I6 Transmission 3- or 4-speed Torqueflite automatic 4- or 5-speed manual Wheelbase 2-door short bed: 115 in (2,921 mm) 2-door long bed: 131 in (3,327 mm) 2-door extended cab