So I noticed when loaded these djm springs are a little on the soft side. The stockers even with with the auto leveling not working still handled load well. I knew I needed to address this. I inquired about an air spring kit for lowered vehicles and they told me I need to measure. Once I got my measurement I ordered a custom fit kit for the rear coil springs. I figured it would be a good time to retire the probably original 200k mile shocks also.
Here is a pic of the stock shocks with the blown out air bladders plus the compressor that was mouted to the framerail.
Here is the rear end sagging, and the new air spring helper installed.
I routed the lines, T'd them together and ran it to a schrader valve i installed near the hitch. They fill up really quick with the shop compressor, think bycicle tire quick.