Are you talking about the load level type air bags or are you talking about the adjustible setup to drop you down like on the frame rails?
Here is a link to the load level type bags I added to my rear setup.
I know with the Z-71 it's not possible to do the lowrider stuff, bonedog was trying to get that going and discovered the front geometry was not made to roll when the truck is lowered too far.
If you are talking about the lowering airbag setup, it's been done I know (not with a Z-71)