The Chrysler AB platform was a truck platform created in 1971. It was mainly used for full-size vans. AB vehicles have used two wheelbases: 109.3 in and 127.2 in.Models: 1971-1980 Dodge Sportsman 1971-1980 Dodge Tradesman 1971-1972 Fargo Van (Canada only) 1974-1983 Plymouth Voyager 1981-2003 Dodge Ram Van 1981-2003 Dodge Ram Wagon