In the 1960s light vans were often named simply by their load capacity, and the van at the time was often called simply the Morris 10/12 cwt.
Developments
During its life the van underwent minor improvements under the metal. However, even in 1967 the vans were still shipped with synchromesh on the top three forward gears only. The engine lived in the driver's cabin between the two seats: the van was considered unusually noisy, even in the 1960s. A J4-based petrol-engined motor caravan was tested by Britain's Autocar magazine in 1967. It managed a maximum speed of 63 mph and a time from 0–50 mph of 20.2 seconds. The vehicle as tested weighed and overall petrol consumption for the test came in at. This van became a familiar sight on British streets collecting and delivering mail in the Royal Mail livery of the Post Office. Although quite a successful light commercial, it sold mainly by virtue of keen pricing to large fleets, living after 1965 in the shadow of the all conquering front engined Ford Transit, as did several other British built 60s/70s light commercials such as the Standard Atlas, Commer FC and the formerly class-leading but now ageing Bedford CA. Whilst competent as a van, the Morris J4 offered a rather poor driving experience even by the standards of the day. The sliding front doors were replaced by a pair of conventional front-hinged doors for the last model year.
Replacement
The J4 was replaced in 1974 by the front-engined Sherpa van, which utilised the rear panel work of the J4 virtually unchanged. The Sherpa remained in production in various forms until 2006.
Spain
A diesel-powered version of the van was produced in Valladolid, Spain by SAVA, between 1965 and 1989 and sold successively under several names including :es:SAVA J4|SAVA J4 and Pegaso J4.
Popular culture
A London Metropolitan Police J4 appears parked in the street on the cover of the BeatlesAbbey Road. The van had been driven down by the policeman who came to stop the traffic behind the camera during the photo shoot. There was a second police officer out of sight further ahead up the road stopping any oncoming traffic. The Beatles also were transported in an Austin J4 minibus owned by their then manager Allan Williams when playing clubs in Hamburg Germany around 1960-1962 era. In the film Withnail and I a London Metropolitan Police J4 van overtakes Withnail and Marwood in their Jaguar Mark 2. One of the police officers slides back the door of the van, motioning Withnail to pull over, before ordering him to "get in the back of the van!"