suspension question

[fella 3]

Ok, this is goning to be kinda hard to explain but hopefully someone will understand what I am talking about, so here goes.

I have a 2006 DC Limited. My [COLOR=#FF4400 ! important][COLOR=#FF4400 ! important]truck[/COLOR][/COLOR] has 34K on the odometer. The truck has no issues at all. I had a set of Bilstein 5100 adjustables on the front and the Bilstein shocks in the rear. The reason that I put these shocks on my truck is because I wanted to level it out. I hated the rake of the front end lower than the rear. So I have the front shocks on the 3rd setting and now the front is just a little lower than the rear but I really can't notice the difference. I also took off the 17 inch [COLOR=#FF4400 ! important][COLOR=#FF4400 ! important]wheels[/COLOR][/COLOR] for the summer and added the Enkei Deep six 20 in wheels with Toyo Proxes II STs (285/5020). The reason that i went with this set up is because I didn't want to run into any balancing issues with some aftermarket wheels and tires. I know that [COLOR=#FF4400 ! important][COLOR=#FF4400 ! important]Toyotas[/COLOR][/COLOR] were outfitted with these wheels on some packages.

I am having some isues. I am getting some slight vibrations at freeway speeds but nothing under 45MPH. Only when I go above 55MPH, the steering [COLOR=#FF4400 ! important][COLOR=#FF4400 ! important]wheel[/COLOR][/COLOR] vibrates slightly. I had my trucks front end aligned right after the shocks were installed and the truck steered true and no vibration what so ever. That was with the 17in wheels and [COLOR=#FF4400 ! important][COLOR=#FF4400 ! important]tires[/COLOR][/COLOR]. The balancing was done with the road force set up, which I prefer. I am taking it back to them tomorrow so that they can recheck the balancing. Any suggestions? The wheeels were also check to make sure they were true and they are. Tires are brand new and the road force balancing show zero.

One last thing, is that when I run over bumps in the road the truck absorbs the bumps but wants to travel sideways when i do so. Or at least that is the feeling that I get. I mean, when you normally hit bumps in the road, you feel it but hte truck continues in the same path but for some reason now it want to jump all over. Anyone ever experience what i am describing?