Firms like A E Evans who I worked for hung on to AEC MK3s until 1972 and MK5s a couple of years later.They were buying ex LPG Transport tilt cab Mammoth Majors that were on a D 1966 plate in 1971.We had a MK3 MM at Sheffield that was still on road in 1971 that was registered in 1955 - PYO *** it was.I inherited an ex LPG Mandator JWW 896D in 1972,when they bought it they took the AV691 engine out and put a AV760 in.VWW 892F was bought ex LPG in 1974 IIRC.
When MOT time came around the vehicles were in VMU for days and I can’t recall one ever failing test.
When I went to Multiple Fruit Supplies at Maltby in 1978 they kept their tractor units,nearly all Scanias,for only two years as they were all double shifted and accumulated high mileages.
