I am interested in leveling my truck. I want to go about 2 inches in the front. That should leave me with just a slight rake in the front which I think I will like. My question is for the guys that have these installed. Do you get any vibration in 4wd? I have done some searches and some people do and some people don't. I really don't understand that? Shouldn't everyone's truck behave the same? I don't want to get any vibration at all, but still want my truck leveled. Is that possible or not?