Overloading the tires on your RV is probably the number one
leading cause of tire failure. Poor weight distribution and
taking advantage of all of the storage space offered on today’s
RV’s result in tire overloads. The only way to find out is to
have the fully loaded RV and / or tow vehicle weighed on
platform scales. Load the vehicle with everything you plan to
take on a trip including passengers, cargo, fuel, full fresh
water and propane tanks. If you tow something behind the RV
take it to the scales with you. The problem is that it is quite
possible to weigh the RV and not exceed the GVWR, GAWR or GCWR,
but you could be exceeding the tire ratings. This is why you
MUST weigh each axle end separately to determine if tire ratings
are exceeded and if the loaded weight is properly distributed.
This tip contributed by Mark Polk at RV Education 101