That sounds entirely logical with the majority of the vehicles presumably with BAOR. One only has to look at accounts from REME personnel about the Korean war to realise that the British have always been woefully underequipped with spare parts and just about everything else in the field. There are many tales of alcohol (the US Army is ‘dry’) being traded for Jeep engines, warm clothing, space heaters etc. With a few notable exceptions the British military have always been saddled with antiquated junk and precious little to keep it going. It would therfore make sense to have at least one component common with the US supply chain.