With a 4.5" lift an 33's, do you have to re-gear?
Also, do I need to buy a sye?
What kinda mpg am i going to get with stock gears and 33" BFG AT's?

 

You're pretty well border line for your SYE and as for gearing i wouldnt as long as thats the biggest tire you run but then again it's pretty much up to you if you find it to sluggish and your tranny shift points out of wack then go ahead you should be able to get away with 4:10 gears and i think you wont have to change your front carrier i went to 4:56 and had to change the carrier also i'm running 34" tires and that gearing brings me back to stock

 

You might be able to get away with just a transfer case drop instead of a SYE.

I did run stock gears on 33"s for a long time, just a little sluggish some times.

I have 4.56 gears and 33" and it feels great, still get bad mileage. Its a jeep not a hybrid!

 

Don't know what gears you are running now, so I couldn't say if you need a change!
More info is better! As in what transmission you have! What you will be doing with this Cherokee,
as in a DD that sees some weekend trails, but nothing serious. Maybe a trail machine that is
hauled to the trails. As for mileage no one can tell you what mileage you'll get, because no one
knows how you drive.

 

with 456s and 35s i was getting 19mpg on the highway
410s might be good for 33s but iv never ran that set up. stock gears and any size larger tires sucks for driving or wheeling, yes re gear. as for the sye you might be able to get away with it. i was able to but you just have to try and see what happens