315/75/16's on GU?

G'day mate,

I saw a GU at the ARB shop in Adelaide last year with that size rubber....looked horn!! However, I reckon it also had about a 4" lift. Not sure if 2" would be enough.

I would probably suggest a slightly wider wheel offset too. Reason? A mate of mine fitted 2 Goodyear MT/Rs to the rear of his GU using the factory wheels (2000 model). On our trip to Cape York last Sept/Oct we noticed the tyres were touching on the inside of the wheel arch under maximum compression....and that was with 265/75s. I have a set of ROH Sunraysias which, unbeknownst to me when I ordered them, have a 20mm offset beyond standard. This will, I believe, mean that I won't have the same issue if/when I move to a bigger tyre. I have always run 265/75's on my GU and have never noticed the rubbing my mate suffered, even when I was running factory wheels.

The other thing you're gunna have to consider with 315/75s is a diff ratio alteration....these tyres are a fair bit taller than standard and won't spin as freely with the standard diffs. Also, check with your insurance company as to whether you'll still be covered...this topis has been done a squillion times on here b4

The only real place they will rub is the fuel filler cover inside the rear fender.

Have done this set up on a few.