I found this on Goodyear site. The numbers come from the National Tire and Rim Assn. Great info. I printed page 7 and put it in the glovebox.
Info for LT, P-metric, Truck-bus, euro, floatation and trailer.
http://www.goodyear.com/truck/pdf/databook/loadInflation.pdf
Info for LT, P-metric, Truck-bus, euro, floatation and trailer.
http://www.goodyear.com/truck/pdf/databook/loadInflation.pdf