Re: Spare tire size
I've got the same situation of 285 tires and a 265 spare. Haven't had a flat yet (BFG AT's seem to be much better resisting flats thant he Goodyears from stock, or it's just dumb luck). Anyway, I figured on doing the same thing you suggested keeping the 285's out back and putting the 265 spare on the front. My theory is the two front wheels are disconnected in 2wd, so size different should be OK, may screw up ABS though. I definitely wouldn't run in 4wd with that configuration.