You need to get the torsion bars first, there is a gap between the new upper control arm and the bumpstop that is critical in order for your truck to get into alignment...the stock t-bars are simply not up to the task of maintaining this height, plus your ride quality is going to be horrible. I run the Ranchos all around but again without the new t-bars up front don't buy them for the front since they ar under damped...in the rear I love the adjustablity. If you go Billsteins all around you need to make sure you buy the longer ones for the rear.