Hi Steve
Thanks for response, sorry I'm late replying but not been too well lately...on the mend now though.
Just found out that the disc's supplied with the diff/shafts are the ones that came off of same car...it's the calipers that are of unknown origin, but am assured they are ford
It looks like I'll be making up a spacer to mount the calipers as there is just enough space to allow this, if I'm careful
If you (or anyone else) find pictures of rear discs/calipers from sierra and/or granada workshop manual I would still appreciate them.
best wishes