Rear caliper

[Stedman8]

I did check the wheel alignment ( in a rudimentary fashion - nothing hi-tech ) and that seems ok, as for the rear axle ,everything seems to be in place,its as if there is a spacer missing or too short by a couple of mil, as an experiment I put a 2mil thick stainless steel washer between the disc and the wheel on every bolt and that centres it - although it wont be taken on the road with these on as I'm not sure how safe it would be  so please keep the help coming , I surely need it , cheers everyone,Steve

p.s. I have taken the caliper apart and totally cleaned it and the pistons etc will be putting it back later so hpefully this will sort out the seizing prob, as for the positioning of the disc  :rolleyes , later,Steve