Mine's got the 4" rough country, had just been installed prior to my buying the jeep. DON"T let them put the drop pitman arm on that comes with it. I've never had a lifted vehicle before, but have owned 2 previous stock jeeps, and this one is rough as hell to ride in, thus I guess is where the name of the kit comes from....:o)
I'm $500 into correcting the major death wobble, bump steer or whatever you want to call it, through a process of elimination is when it was found the cause was the drop pitman. Now though, and I suppose from the stock pitman arm being installed, my entire front end is shifted 3-4 inches to the right, outside the track of the rear wheels. I've been told I'll have to drop several more hundred to have an adjustable track bar installed to pull it all back into line. Still contemplating weather or not I'm going to even keep this thing or not.