For those who have replaced OEM tires, this is good information about proper tire pressure. I'm still working to get what feels like a proper tire pressure for my 70 Revos.
http://www.4crawler.com/Diesel/Tires...roperInflation
Question for those with Revos, can you do the business card test -- as suggested? If they mean inserting a card from the side of the tire, under the tread, then I can't get a card under AT ALL. And, I'm running 33lbs in mine -- more than would seem indicated given the load of the 4runner compared to load rating of tire.