I ran 285/75r16's with 3.73 gears and the 2.5L manual transmission, it brought teh suck! I mean it was drivable, you just had to floor it more than usual. I just did that for a few weeks while working out the kinks with my axle swap, then took it to a shop where they installed my 4.88 gears.
I drove for 6 months on 34" bias Swampers with 4.10 gears, it sucked but those tires were badass.
'95 YJ 2.5L "Mabel", Muncie SM465, np231J, HP30 TJ shafts, JK D44 Detroit, 4.88's, 255/85r16 KM2's, SUA lift, body lift, JK steelies, winch, flat tow bar, CJ/M38A1 front clip, CB, Bestop seats
'98 Lexus LX470 UZJ100 black trim and rims, 4.7L V8 4spd auto, full time with center diff lock, open 4.30 gears, 31" Yokohama HTS, AHC delete, TJM torsion bars, 80 series coil springs with 60mm spacers, custom shock setup
going to EJS 2014