So I have a 04 Denali that I've had for a few years and always wanted to lower. The rear air shocks I don't want. Pump burned out not long after being replaced probably as I have not heard it cycle on for quite a while. But Ive looked at the forum numerous times whenever I wanted a question answered but don't know where to start for the drop. I've looked at the drop thread with pics and I like a 4/6 drop from what I've seen. But there is so much different information. I would plan to do it myself as I do enjoy working on my own vehicles and don't send them to the shop unless it's a big job that I don't have the means or ability to do. Besides shocks, spindles, rear springs, torsion bar keys... What else do I need? I expect an alignment to be needed after but what about pinion angle and etc? What else will change or needs to be addressed/ modified because of the drop? I was thinking about just doing the rear shocks because that's necessary for now but I want to lower this truck and because I have to do wheel bearings up front I was thinking why not do drop spindles and lower the truck all at the same time. Any information will be appreciated. Want to tackle this job asap because driving with the shocks like this is driving me crazy.