nope, don't touch them. They do the same crap as cranking the bars. On the newer 99+ trucks you can do that with no negative actions but on the older trucks it doesn't work for some reason. I wanted to put them on my 95 for more lift and the guys over at fullsizechevy.com said NO WAY. I cranked my tbars a bit to level that thing out, rode fine as far as I'm concerned and sat much more level than it did before.