I just saw this in the bottom add that you posted after I clicked on show contact info;
perfrect suv for the family...$6799 or best offer. 323-893-4899 serious buyers only
It also says the ad was just updated 2 days ago - have you tried calling him?
After going through all the pictures and doing a little detective work, I can tell you that I don't think this is a 4x4 - despite the few modifications he did to make it look like a 4x4 at a glance.
1) No Trail-Rated Badge
2) No 4x4 Badge on the Rear hatch
3) No Chrome T-Handle to shift into 4-Low inside by the gear shifter.
The only thing it could be is a Quadra-Trac I Commander that has had the 4x4 badge removed - but I'm kind of doubting it.
I think a guy with Chrome rims and all of the Limited Chrome Trim still in tact, probably would have left the factory badging alone - and like I said, even a Quadra-Trac I Commander would have come from the factory with the 4x4 badge on the left side of the rear hatch door.
If you add up all the visual evidence, with the fact that the guy doesn't say anywhere in his AD that it's a 4x4 - which would be a big selling point - and it all leads me to believe that this is just a 4x2 - and I also think it's a V-6, which is probably why it's still for sale as I don't see any of the 4.7L Flex Fuel badging on the rear hatch either.
Anyway, good luck.