Re: What gears for 33\" tires?
You will find 4.10 gears to be just about right. That size will let you go down or up a couple of sizes without having major problems. I am assuming that you have the T5 transmission. 5Th gear overdrive works fine on the fwy.
As for used gears...finding used 4.10's will be tough, because most guys will be like you...replacing their 3.31 or 3.73 for 4.10. You might be lucky but personally, I would buy new, that way you know what you are getting. Just so you know, you will pay about as much for installation as you will for gears...which means you only want to do it once...so buy new ones.
Check out Drivetrain Direct. I bought a full set of gears, front and rear, plus install kit (bearings and misc items) for about $420.
84CJ7, 3"lift, 32"BFG, 4.10's, ARB Locker, Solid Axle's, Durabak