If you are having trouble with your alignment, there may be other items with your suspension that could be worn as well as the bushings, or sway bars. When trying to diagnose all that could be causing this it may just be easier to replace these parts.
I purchased a bundle kit from Strutmasters.com. It replaced my air suspension with a non active non air suspension kit. I purchased the bundle kit because it gave me the extras that I needed to fix the suspension. Such as new sway bars, tie rod ends and control arms too. If your having any issues with your suspension, I would suggest to call Strutmasters.com and talk with them They have a great customer service staff! They saved me a lot of time and money!