I got the longer studs fitted to the front on Thursday, but no pics becasue I was in a massive hurry. There was the same problem on the front that the splined section of the stud was too long. I drilled a slight clearence on the rear of the disk to clear the splines, and this morning I pulled the drums off again to clearence them as well.
I wish I had got some pics to make this post more interesting.
There'll be some tomorrow though. Going to the tyre fitters first thing.