[HumminNBoatin']

I had them on my H2. And now as of yesterday have them on my H1.

I run them at 38-39psi. Remember they heat up quickly and air expands.
They are louder than the factory tire but in the H2 you really can't tell difference that much as the truck is so well sound insulated.

On the H1.... Well They are alot louder than the Military OZ tires that are OEM. And you can certainly tell the difference as my H1 is an opentop.

If you over inflate you will wear out the center section of the tire alot faster. Under inflate and you'll wear out the shoulder lugs faster.

High 30's really is your best bet for pressure. At least I found that it makes them wear alot more even. Oh yeah and BTW I have over 40K miles on my Toyo M/T's now. So treadlife is really satisfactory.