Morris introduced the J4 (and Austin J4) as a forward control van based on Morris Oxford mechanics in 1960. It was available as a 10/12cwt vehicle. From 1968 it was badged as 'BMC J4' and then later 'Austin-Morris'. The first major revision came in 1974 when the underfloor engine was replaced by a conventional front-mounted engine and the J4 was given a new bonnet front and marketed as the 'Leyland Sherpa'. The Leyland and then Morris Sherpa were revised with a new horizontal grille similar to the Range Rover in 1982 and sold as the Freight-Rover Sherpa. From 1984-89 a square-lighted Sherpa was marketed as the Freight Rover 200, alongside a new wider-bodied version named 'Freight Rover 300'. From 1989-97 the 200 carried 'Leyland DAF 200' badging reflecting the merger of Leyland and DAF truck operations. Leyland was split up in 1993 and a new LDV operation continued the production of the 30year old J4 van, eventually revamping it and selling it as the LDV Pilot. Meanwhile the larger 300 Series was revamped as the Leyland DAF 400 Series from 1989-97 and then as the LDV Convoy from 1997-2006.