I've put a Rustys 3 inch spring kit on my 99 XJ and am really pleased with it, the next step for me is some bigger tyres. I'm looking at 265/70/15 or 31/10.5/15.

Which would you guys recommend and will the larger tyres cause problems with my diffs or anything else. The garage I went to suggested not going any bigger 235/75/15 because of rolling circumference and diff issues but I know many of you have ! Current tyres size is 225/70

 

go with 31" tires

Ohh Tires...not tyres! lol

 

with 31s, you should not have any issues at all

 

thanks lads !!

 

31's will not be to hard on your axles unless you just totally thrash your jeep. This is mine.
This is 31 BfG mud-terrains. With ever 10 mpg your speedo says just add and extra 1mpg exp speedo says 60 you are going right around 65-67. That is a ruff, but it is close enough to keep you out of trouble with the law. That is for 31's.

 

those look great but don't you mean mph??

how does the muds effect mpg's by the way and how's road noise !!