Ya, crank those bars up, leave about 2-3 threads showing on the bolt... trust me. and make sure that both sides are even.. i have mine cranked up, i was getting horable rubbing on 275/55/20 - but now i'm not getting a thing.. and if you want to level it out, go to Advance, get some 2inch lift or lower blocks (make sure they are steel not aluminum) and put them on the rear-end - then go in for an alignment - i used the aluminum ones, broke one in half, and severely crushed the other - you really need longer end link pins on your sway bar in the rear, but i can't find them anywhere - and to do the rear blocks, you will need some new U-Bolts, sept the ones on the tahoes, and kons, are not Us they are Square Us... or rectangle Us what ever you wanna call em - they have to be longer, and if you use the cheap ones.. then you will really have to torque them on, or the bolts will come back loose