I'm not to sure how to best explain it but I have an 05 tj that has had this problem since I've owned her, replaced a lot of parts ( lower control arms, re adj trackbar, quick disco, etc) but have made it ride "better" I guess. I've had a clunking problem in the front suspension (normally front driver side wheel area) when accelerating after shifting, shifting into second at low rpms, backing out of the drive the pushing the clutch in. I could really figure out what was causing that noise until I was pulling into my storage unit and while I was reversing I pumped the brakes with a few quick taps every time I hit it at a rolling speed the front left tire would clunk and violently shake?
Any though on why this would happen? I have a video of me rocking the tire back and forth and with each quick heave it would make a pop sound.