Not positive but it seems like people are reading yellow stickers that look like they are tire ratings. Use that but also look at the stickers that tell you GVW and GAWR front and rear. Nothing personal but us dumb dually owners have a rear axel that dwarfs the SRW trucks, maybe that is why they put two tires on each side. I believe they can make SRW axles stout enough to carry the weight but they need to put 19.5” tires on them. Hell if they did that I would have bought one.
Happy and safe roads to you.
Tom Marty
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