Well I finally got around to installing the kit...well just got around to the rear. Really considering the newer adjustable front shocks from Norcal and not install the front spindles. Here is a before and after pic. I used the 1" spacer, stock upper rubber mount and I got less than 2". Not I did use the newer sensor rods at the instructed 3" spacing but I also made marks of the stock sensor positions and after install the marks are a fraction of, maybe 1/8" so the air shocks could be holding a little more than before install
Before 37 5/8"