Have replied to your message Robin... looking at those lovely machined parts I notice that the mating face on which the diff ring/washer sits is completely flat - on the original parts there is a slim 'lip' around the outer edge which I think gives the effect of applying more point pressure on the diff ring & helps it 'grip' ... if that makes sense?
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TeamC TM2 (V1)
Xray T4 15' (I finally conformed!)
Associated R5.1 1/12th Pan Car (Occasional Racer)
+ too many vintage racers to list!
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