Hi John, Just recieved this info re your bedford.
There was a batch JJD 224D to JJD 245D i think the vin number will actually be RLHC349937 the chassis type is RLHC3 chassis number is 49937. It does not appear to have been issed during its life and it was sold from the Home Office's Branston Rd depot Burton on trent in nov 1988 with 1616 miles recorded.
and recieved this to from someone else.
The "T" in the chassis number does not seem right, but if the
code is RLHC3 49937 the vehicle would have been built in 1962.
Codes 8T,9T,0T,1T and 2T were used from July 1967 until June 1972,
but between 1967 and 1969 the RL became model RJO with 330 diesel and
RFO with 300 petrol. 8 means July1967-June 1968 T means Dunstable.
This one has the pre July 1967 RLHC3 code for a vehicle with 300 petrol engine.
Hope this helps.