Tie-down and cargo area divider. It makes a nice safe spot to store optics, rifles, and other fragile things without getting crushed by coolers and such. Also doubles as an extension for sleeping in the back.
@leonard_nemoy Did you ever get this sorted out? I just installed the Sumo low range gears in my transfer case and the only issue I'm having is it jumping out of low into neutral. This usually happens between the 1-2 shift in low range. I also...