Perfect example of what I was stating. Look at post #9. He has great alignment #'s at 2.5" lift with stock uca's. Go figure.
http://www.toyota-4runner.org/5th-g...t-front-275s-do-you-ever-have-any-rubbin.html
Not every Toyota is built exactly the same. Some may get lucky.
I just lifted mine and did the SPC UCA's haven't had a chance to get her aligned yet. I have an appointment tomorrow to get it done.
I am requesting that the tech set the Caster at 3.5 and the Camber 0 or slightly negative. The further out he can push the LCA's the better it will be for my inner CV boots.
There really isn't any problem with running the stock UCA's
The only thing would be less than optimum handling and inconsistant tire wear.
But the truck will most likely be able to get within spec.
But that being said simply because you are in spec doesn't mean it's good.
Depending on your set up there is an "optimum" setting that will yeild the best results.
For me I'm OCD so I will keep messing with it until I get the best possible results.
So I guess it would really depend on what your personal standards are in the quality of your end result?
You spend $35K-$40K or sometimes more on your 4runner, and you're worried about $500 for a set of UCA's to do it right? Go figure???
I don't make a dime if you buy a set of UCA or not.
I simply try to give you the best advice from my personal experience to help you enjoy your ride.
I would recommend UCA's. But at the end of the day it's really up to you!
Good luck!