91 Suburban 4wd Steering Questions? Wandering?

[wpotter]

I am in need of some help. I have installed a new steering box and stabilizer because it seemed worn out and felt like truck was all over the place. Didnt seem to help a whole lot. What else should I check? This is my first four wheel drive so not real familiar with what wears out, or if thats just the way they are. I was thinking about replacing the pump because sometimes it steers easier than others and also getting a front end alignment. Any suggestions or help will be greatly appreciated.