The new uca's actually help out the ball joint angles, ask me how I know. Cranking the keys is what puts alot of stress on the front end components. The uca's are there to correct the issue that the keys produce. They may be in the stock location, but are angled differently and have different pockets for mounting the balljoints to relieve the bad angles. After cranking even stock keys more than an inch, an alignment should always be performed on the truck. When I put the uca's on my truck, I went ahead and replaced all ball joints, tie rods, tie rod ends, idler arm, pitman arm etc just to be safe. As for the aal, they are actually good for 2 inches, not 1. The difference between the RCX 4" and 6" is only an aal for the rear. They have the same kit for the front, the 6 just requires you to crank to achieve that extra 2". As for rear bumper brackets, just flip the factory ones, or make your own out of the stock ones. I've been wheeling on my new uca's, Ford keys, and 6+3 on 35's for awhile and there has been no bending. If they are contacting the bump stops constantly, probably cranked a little to high and hitting **** pretty hard.
CV's aren't angled too bad
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balljoint looking down
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balljoint looking in
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The front is cranked to sit higher than the rear
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The 2-3" kit isn't that bad of a kit, if thats all you want for a lift. As long as you don't crank the hell out of it, the ride doesn't suffer too bad, and like I stated earlier, I've been wheeling mine probably close to 2 years just like this an haven't had to get an alignment or replace balljoints, CV's, tie rods etc.
thank your for your first hand experience