Fairly new here. Many times people upgrade tires and use a higher load rating than the original 'P' tires. IMHO people with LT tires in place of original equipment 'P' tires often times run them too soft

I stumbled onto this, page 11 on your ADOBE pages (or page 71 as printed on the document) is very interesting and informative.

http://marktg.toyotires.com/file/loadinflationtable.pdf


This is good too: http://www.toyo.com/tire_safety/Rep...s%20on%20LT.pdf

Hope this is of interest and helpful. Forgive me if it's 'old news'.

Chris