[1coopgt61]

Just out of curiosity, why did you have to go to 44psi? That is usually the max psi on a lot of passenger tires. Generally you will run it much less than that. Are they low profile on large rims?

Shhhhh hes a Grand Cherokee owner plus he's asking about re-calibrating the TPMS for wheel spacers. Kind of says it all. Probably goes by whats marked on the tire instead of the Plate on the Door Jam. Just hope he doesn't decide to go driving in any sand dunes.