Besides researching Suburbans, I managed to get a couple of things done this weekend. I installed my starter, fuel pump, and TV Made Easy setup. The TV setup was pretty easy to install; I had to drop the pan and install a new spring in the TV system, install the new cable, and set up the carb linkage.
AZ66GMC, here is a pic of the rear crossmember I moved. I only had to move it about 3/4" back on the passenger side.