So I recall a rattle in my front end when my 01 XJ was stock, while driving 5-10 mph down a rough road....recently put on a 3inch lift with new lower Control arms.
Yea lift is snug.no loose bolts.....new bushings of course in the lower arms.

The loose rattle is now even more noticeable since I've lifted it. I feel it always when pulling up on my driveway as the jeep wiggles side to side.

What could it be? Upper control arm bushings? Something else?

 

check swaybar

 

My steering stabilizer bolt was a bit loose at the axle end on my MJ when I first got it and it rattled. Worth getting under there and poking around.

 

I didnt tighten my trac bar all the way to 60-75 foot pounds and it clanked everytime i steered. Good luck

 

X2