Just seen this post, I bought mine from the USA, JT differentials, ( just differentials) if I recall correct, on the web, it came in a kit complete with all the bearings etc, including the " crush" washer or the option of the solid brass shim, wasn't that expensive compared to OME. Hope this helps, and you can choose what ratio you want. don't forget the duty etc will have to be paid this end. I telephoned them and paid by card, really simple, the agent this end was the Post Ofice, paid the duty, job done, been in use about 5 years now. Good exchange rate at the moment also, worth a look , best regards, Bill Westley