I'm going to post this here as it fits, [MENTION=69789]newbian[/MENTION] and [MENTION=46576]jrob[/MENTION] hope this is helpful...
This past week I installed the Camburg UCA's with moog ball joints (purchased from wheelers, great service as always!). I'll be upfront, I don't know anything and this is purely my opinion, experience, and some speculation maybe.
I paid to have my lift installed given time and lack of experience, high country 4x4 did it as well as alignment. It actually drove just fine with factory UCA's, a little twitchy at high speeds but I don't remember what the alignment was. I have about 2.5" lift up front and with it driving well I figured I'd swap them out when I had time, about a year and a half later...
The install wasn't bad, I had a buddy help but neither of us had ever done it but I did find a YouTube video of a TC install which was good. The hardest part was getting the long bolt through with the washers lined up, not quite as easy as the video of course! We used something on the backside to hold things in place as it went though, made things way easier. Had a little trouble on one side with the castle nut kinda binding but [MENTION=106176]wfo9[/MENTION] coached me on how to fix that (thanks again!)
The alignment showed with the new UCAs that caster started at like 4.8, I have gotta think there is definitely extra caster built in as there is no way it would be that high otherwise? After alignment it was at 3.6, I put 170 miles on it today with almost all of that highway, drives perfect and it's definitely better and more stable, zero complaints on it. I did put new 265 C load duratracs on at the same time FWIW. I don't know if a full 3" up front would further impact caster but for me it seems like the Camburgs were a good way to go. I know people have installed these and not gotten much better caster, I wonder if camburg updated them along the way? Hard to know.
On a side note the LR UCA were never an option, past bushing issues aside, with people posting the rust on them after one winter just didn't have confidence.
Anyway, my 2 cents...