Be Prepared to be F'n blown away with a customer service story....
So Les Shuab first set the truck 2 levels down just to get a visual on it, he said it was way too low, so they took the shocks off again and set it one level down. Replaced the axle with a killer axle shaft better then the ones that come rusty from the factory, and realigned it, for free. Dudes, this is not the first time les Shuab in Rhonert park has giving me great service. I had to have some radius arm bushings and I called everyone in 3 towns, and was priced between $450 and believe it or not $1600. Shuab did it with poly lifetime bushings for $167. These guys are for real, so shot out to them for great work and fixing it with no questions asked and an apology no less.
OK, so I have been beating my truck all afternoon testing all of this stuff. With the new level just a 1/2 inch down, the vibration when in 4wd is gone! Gunned it around 50 times in 4wd and couldn't get but one faint hint one time of a vibration. So I can't say enough I recommend like so many others just go one step down. As you can see on the tape (sorry for the blurr) but it is only 1/2 inch or so lower then top level. I will take a picture of the truck when I get around to it, but it absolutely looks just as level as it did on the other setting. You would really have to look hard to see any hint it is not level.
The truck didn't drive noticeably different by changing the level, but of course it didn't have the vibration. I will drive for a while like 6 months and report back. But so far this is an amazing level and consider have Les Shuab do yours, they stand behind their stuff. I feel bad because this must have been a total loss for them replacing my axle shaft, but they have my loyalty and will be getting my tires/wheels from them as soon as I upgrade.
Love these bilstein 5100s, go get u some and don't use those crappy coil spacers!!!