Interesting info, Eric. Thanks. However, our Montana came with and currently has ST tires. But since ours won't sit still a long time, when it's time to replace I'll probably go with either ST or LT, whichever is available and has the best deal in a tire I'm satisfied will do the job.
Another question about ST vs LT. I learned the hard way mixing load ranges on the same axle can throw the axle out of alignment (cost me $150 to realign). I wonder if the differences between ST and LT might do the same? To be safe, I will always make sure to have identical tires on both ends of an axle. That means I will have to have five identical (size, type, load range) so I never have to cause a mismatch with the spare. Or carry two spares (not).
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