Just wanted to give an update on my tire decision. I have ordered the Maxxis ST225/75/15 Load Range E. I ordered them from Discount Tires since they were willing to price match the lowest price I could find online which was $511 including tax, plus mount/balance.
After verifying with Tredit, the 75psi rating on my white steel spoke wheels and reading the
Inflation Chart from Maxxis I feel comfortable with the running the tires at or under 75psi since I will be comfortably under 2600lb max wheel load rating and the 2830lb max tire tire load rating. I will verify the load on each wheel when I figure out an accurate way to accomplish that. For my rig I didn't feel it was worth the extra expense of new wheels and the labor required to fit 16"s in my wheel wells. I think this upgrade from Load D to Load E will give me the extra load "buffer" I was looking for with little extra expense or labor. If my wheels had not been able to handle the additional pressure of the Load Range E tires (which would have required new wheels) then I would have much more seriously considered moving to 16's since there would not have been much more additional expense to do so.
I will also be adding TPMS sensors, metal valve stems and possibly dynabeads.
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