If I get a rough country 4.5 inch lift, will I have to make any changes to the drive shaft or stuff like that? Also how hard is it to put on a front grill and bumper from a 97-01 Cherokee onto a 92? Sorry if these are dumb questions, I just bought my first xj haha.

some folks do an SYE at 4.5". I haven't and haven't had any problems out of it. Beyond 4.5", some are running the front double cardon DS in place of the rear with an SYE

Mine didn't require any changes, but YMMV...

Okay thanks, I'll run with it and see if I need a SYE.

what tcase do you have?

I put a brand new 3.5" leaf spring set on my 90 and needed a custom length drive shaft along with a SYE. But after I did the install, I was almost positive that they sent me a larger size because how much taller the back was. Definitely hot rodding down the road until I had to put spacers up in front.

I had to put a tcase drop in there until I did the SYE

Had to do a tcase drop with my 4.5" lift as well

My 88 has a 4.5 with no drop or sye...small shims though

I have a 6.5 with no drop or sye.

I tried tcase drop, then shims, ended up doing sye, 4"-6"

So sounds like I'm either going to have to drop the transfer case, or get a SYE if I go with the 4.5?

You'll get away with a tc drop but if you can afford it go with the sye

um no, but if ya wanna blow $ ya can!

Sye is the "proper"way to do it...but I had 4.5 on my old xj with just a tc drop for about 4 years with no issues...current owner is still running it the same way with no problems