LadyRVer wrote:
Just upgraded with 4 new tires, 15" to E rated. Have about a 9,000# fiver. Was told not to do the LT tires on a 9,000 fifthwheel. 3 different tire places told me that.
Yeah lots on newby car tire dealers out here that are clueless about tire replacement issues.
I would look for a dealer with more trailer tire experience than those three.
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Anyhow back to the OP question.
Many foreign made trailer wheels don't have a psi rating. Of the five trailers I have all of my trailer wheels have a PSI and a load rating. My truck tire dealer and implement trailer mfg sells trailer wheels or tire wheel combo's.
They will not accept wheels shipment from a wheel mfg without a psi or load rating. As the truck tire dealer says its too big of a liability issue for him to sell a wheel without both rating on the wheel.
If your going from a D to a E tire keep in mind the benefit of the E tire comes only at those higher pressures.