Thanks guys, all good info.
I originally had a drum rear end and still have it tucked away. 3:36 or something similar. I took this disc rear off a Statesman. I just changed the diff over when I changed a few other things as well.

Job done.
Took van to a local place where working on the disc brakes did not phase him, not like a few others around the area. All doom and gloom some of them, or just plain inexperience.

I usually do the brakes myself but got a few things on and for the price charged, well worth putting my time to something else.