Originally Posted by Ralphrlong
Anyone know if 31x10.5r15 BFG ATs will fit a non lifted XJ?
I currently have 30x9.5r15 on it and they work great. Would love to go up one more size.
30x9.5R15 is the absolute largest size you can run on a stock XJ.
The 3 best AT in that size IMO are Cooper AT3, BFG AT, and General Grabber AT2 (new version of AT2 released several months ago).
Stated-Claimed height claimed by manufacturer
Cooper AT3 29.3" (which I consider largest safe height for no rubbing on stock XJ). This is my favorite because of smooth ride and great all purpose performance.
BFG AT 29.5" (which might rub a little on some stock XJ). Good tire, but the other 2 tires are better IMO.
General Grabber AT2 29.8" (which is likely to rub on stock XJ). This is tallest and most aggressive AT in 30x9.5R15. It could be called a hybrid tire since it's more aggressive than any other AT that I know of. Great tire. The tough sidewalls can handle hardcore offroading, but ride rough on road. Otherwise great on and off road.
If those rub a little, it is easy to fix.
IMO those ^ are your best options for 30x9.5R15.
There is also the Cooper ST, which runs a bit tall and is a hybrid tire (mix of AT and MT). If you get this, add extra sipes to center treads for Winter traction. Great tire in its day, but as old and outdated a design as a BFG AT. Still great, but will buzz a bit on road. Will be discontinued within next 6 to 12 months. It is the only true hybrid tire made in 30x9.5R15.
Note: I have owned all the tires mentioned, except the Cooper AT3. I would love to try Cooper AT3.