Fitted up my 33" spare - 255/75r17 to match my 255/85r16 tyres. Also a BFG MT.
Only JUST fitted - very tight. Had to let it down to about 4 PSI. Would have gone in more easily if the towbar was just a little further out. I think my bar must differ from US spec ones as some here have fitted 33" spares no worries.
In case you're wondering, the factory Nissan towbar is incredibly strong. I broke a Toyota towbar in half at the tongue weld when doing a moderate recovery with an 8 ton snatch strap... and yes, I removed the ball and replaced it with a shackle.
Also went on a fun evening trip with the Land Rover club down at the Ashley River. 18 vehicles. I was the only Nissan. Lots of slippery mud and a few nice off camber bits and ruts.