I'll check that out. ThanksAnswers will be all over the place.
You can figure it yourself though: https://toyo-arhxo0vh6d1oh9i0c.stac...ication_of_load_inflation_tables_20170203.pdf
Start on page 11.
I'm running my 325/65r18s at 35f and 30r. That's higher than I calculated, but looks pretty good. Yours are rated a little less (3525lb @ 65psi), so somewhere around there or a little higher should work.