Oh, and 4.56 seems to be the consensus for 33s. If ever considering going to 35s most say 4.88 gears are what you need. There are a few on here that have 4.88 gears and run 33s. That being said, if ever planning on lifting it more or going to 35s it may be best to throw some 4.88s in to save the possible cost of future plans to go larger than 33s.
2001 Jeep Wrangler Sahara Edition
4" Zone Suspension Lift Goodyear MTR 35s
Black Rock 909 D Rims
I6 4.0L 5 speed 3.73 gears
And more mods to come