AH64ID wrote:
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I understand there is a federal reg limiting 17's and that is why tires are dropping from 37xx and 39xx to 3195lbs.
I thought this sounded ridiculous but in looking at these screenshots from Toyo's website maybe it's true. Notice how every tire size from a 245/75R17E to a 35x12.5E is rated at 3195! Since load rating is a calculation using air volume, heat and tire design this makes no sense. In both 16" and 18" the loads climb as the sizes go up. These are all the same Toyo Open Country AT2 tires?
Somewhere along the way the big 3 truck mfg got together with the tire mfg and decided that going forward all 17" wheels will be for 3/4 ton trucks that will never need more than 3195lbs tire capacity. 1 ton SRW must have 18" or 20" wheels. They then decided it was too much effort and too late in the game to make all the tire mfg change there 16" ratings. Of course I'm speculating all of this but starting to think I just put any Nitto or Toyo 285/70R17E tire on my truck I want and it will be fine even though the print says 3195.
