well.. any size you want.. just you'll be waaaay slow outta the gate speeding up if you keep the 3.07's.. your best bet is to regear.. if you want 31's.. i suggest 4.10's..; 33's 4.27's; 35's 4.56's or 4.88's; and so on and so forth..
Awwwwwwwwwwww... So he wants to go OFF-ROAD does he????
'93 YJ, 4.0, K&N filter, Borla Header, Borla Cat-Back, Hi-Flo Cat, 3 Core Radiator, D-Rings, TruckNuts, MSD 6A, LockRite Locker in D30, Magnecors, Kickass Stereo, 1" daystar, 31" BFG AT's, Homemade Rocker Guards and Front/Rear air-tank bumpers with tire carrier, 15x8 AR-767 4"BS, BDS 3.5 HD lift, AMA A/C Kit, York OBA, GoFerIt 1" MML, 8,000lb HF/MM Winch, Magellan MAP 330 GPS, PRO-2067 500ch. Scanner, oh, and a CB capable of talking to SATURN!
"The Only Thing Necessary for Evil to Succeed is for Good Men to Do Nothing." - Edmund Burke