Hi there Folks: I've found a bit of information reguarding my backing plate problem. I have the 5 lug on a Swing Axle this is (so I've been told) for a Type3 65 to 67 the shoes are a bit bigger in width 1-9/16inch wide. I've checked with one of our suppliers in Canada and he tells me its going to be very hard to find.
Lightnen