Small update.
Got exhaust modified so longarm does not contact it anymore.
And picked up tyres. You can actually fit 4 33" tyres in the back of an xj.
I was originally going with 33" mtr/k's. But my mate that was getting them cheap for me left his job. And I just wasnt going to pay full price for them. So I went the cheap route for now.
33" maxxis bighorns. And I know that they are only 2 ply blah blah blah. But they will do for now, as later I may go bigger anyway.
Pics of tyres on car coming. Now I need to get my ass into gear and build my ford diff.