I'm converting the Indy from bike engine, to an MX-5 drive train, and need to get a hybrid propshaft made up, Mazda at the front end and Ford at the back.

I can find loads of MX5 propshafts on ebay, but am struggling to find a source of rear flanges / joints compatible with the Ford Sierra diff.

Am I searching for the wrong thing, or are they the same PCD / bolt spacing as anything else?

I had a new prop made up recently. I’m sure the guy said there were two different flanges for the diff, but one was more common. He supplied a new one for me. That’s was HJ Chard prop services in Bristol.

I ae an Rx8 carbon prop for my escort to fit the rx8 gearbox and I'm aiming to fit it to my english axe and the PCDs are definitely different. I'm going to get an adaptor made.

Seems to be a way of surmounting the problem. there's a lot of discussion about it on the turbosport forum.