I have 16" stock vx wheels. Stock tire size 245/70/16, isn't the largest I can go 265/70/16?

Looks like the center bore of a Nissan Titan is 77.8mm. According to this thread: http://www.vehicross.info/forums/showthread.php?t=19383 our center bore is actually 100mm not 108mm. So I would have to get the Titan rims machined to 100mm...