Thanks for all the help.

Basically that is also what I thought, the diff is offcentre.
What I don't understand, How does the suspention places know when it is centered?
Do they have special alignment tools to put it centre.
Something else.
If the diff is offcentre as it is now, will it not cause premature wear on the universal joints?

If I look at the left rear the tyre sits in the normal position.
I can actually have someone in the back on the left side and it will not rub when going through dips. Only on the drivers side which is the right rear. This is when looking from the back of the car.

I inspected all bushes and links to make sure it was not bend in an accident. Everything looks fine.

I will take it to a suspention place to check out for me.
Just wanted to share my problem with you guys.
Thanks

PS
L18_B110

It was always looking normal with the 12 inches.
When I put on the 185/60 R13 tyres I noticed it being 1cm out of the guard on the drivers side(right hand side if looking from the back).
The left hand side is looking normal.