I think you will find when doing the math, that for a 17k Montana, subtracting 20% for PW, the OEM tires meet the requirement for max load capability. I'm not supporting Keystone or the tire manufacturers...the manufacturer puts out lousy tires and Keystone uses them because they are cheap. But, technically, Keystone is meeting the requirement to have tires rated for the GVWR load they might carry.
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