I would estimate that there are few, if any, commonalities between the two. There may be some Lucas parts that are common (I can’t think of any off the top of my head), and from the manufacturer’s point of view the merger between Austin and Morris into BMC didn’t take place until the very end of the ‘Counties’ era, some time after the design of the last ‘Counties’ vehicle.
This reply was modified 5 months, 2 weeks ago by PeteJS.
Hi, The merger with Morris to form BMC took place in early 1952 just with the launch of the Somerset so within the Counties Period not after the design of the last Counties vehicle as stated. BMC was very relevant to Counties Vehicles and during the latter part of the life of the Somerset there was a slight change to some fittings. The Devon Pick up and Van saw the greatest change as the organisation moved away from BSF fixings to UNF.
As for Spare parts.. The only spares in common with Morris Minors are indeed some Lucas items such as the starter pull switch and the RB 106 cut out box. and even then be careful as Somerset items have screw connectors not the latter LUCAR. But in reality not much else. The starter and dynamo are not the same nor are any of the engine, gearbox or suspension components.