Plan on doing the same thing with the kit as you did for my 2015 Sierra Z71, Eibach kit (lowest notch), New UCA's (probably RC or cognitos), new end links, Motofab 2" block, new wheels and tires (i like the look of your 285s on 17 0mm). Question though, did you have to do a diff drop kit for your Z71? or are the angles fine without it? I'm trying to do everything I can to preserve the stock angles while I'm going to have everything apart.
Question for everyone too, would a diff drop kit be recommended with this kit?
From doing some research it's my understanding the Z71's and LTZ's require a different kit than just a 4x4.
Great info on this page, really helped out!