Manufactured in 1962 by the Roustabout Company in Frackville, Pennsylvania (USA) the Trivan was a 3-wheeled lorry with a fully enclosed cab for two people. With seven years of testing, the vehicle was designed by C. Harry Payne, who was also became known as The father of the Jeep*, the originator of the military Jeep in 1939 that was used so heavily during World War II.
Roustabout built the TriVan from 1962-1964 with a Kohler 32hp two-cylinder air-cooled engine, three-speed manual transmission and air bag suspension. The Trivan had a fiberglass body attached to a heavy duty steel tube chassis and airbag suspension. All models had an open pick up type rear body with drop down sides. A fully enclosed rear body was designed for a prototype but never manufactured.
Production ceased in 1964 after 112 vehicles had been made. A number of them were purchased by East Coast Trailways affiliates.