The trailer builder is required to provide vehicle weight limiters. Limiters (GVWR & GAWRs) are maximum load limits for that vehicle and should never be exceeded.
All the information needed for a consumer to ensure vehicle loads are appropriate for their trailer has been provided. Some are often misinterpreted leading to vehicle overloads.
A trailer with 7600# GVWR minus the manufacturer’s recommended tongue weight of 600# is required to have axles rated high enough to support 7000# (two vehicle certified 3500# axles). There is no gimmick to those figures.
After first sale, the consumer becomes 100% responsible for tongue weights.
When the appropriate axles have been installed on the trailer at the factory, there is very little room to suspect they helped the cause of frame cracks/fractures.
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