I've just got installed a Quik-lock up front with LockRight in the rear with 4.88s. Went wheeling yesterday at KanRocks and the kids and I had a blast.
This is the first vehicle I've owned with automatic locking front. On the street, they are not noticeable (probably due to the 4cyl). But offroad in slow go, the front is troublesome. I've got to make wider turns and had to back several times to make what I use to make in my 92 Bronco unlocked. I'm not saying it's a bad thing, just something I need to work on. I did get better as the day wore on.
The shifter did get disconnected from the t-case, but I was told by my counterparts, that's normal for a TJ. The rubber bushing wears and the arm just pops out of the shifter mechanism. (Never had this problem in my XJ I had for 9 yrs.)
I've had the ARB in my XJ back in 92. They did fine for the 9 yrs I had that. I've had a front ARB in m Bronco. Now, with the TJ, its locked all the time. I figured the TJ is light enough and the lunch box lockers are cheap enough, I went that way.