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Old 10-20-2017, 02:24 PM   #1
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GVWR vs. axle rating

I have noticed, while researching different 5th wheels for our soon-to-be Full-Time RV-ing adventure, that many of the RV's total axle ratings are less than the GVWR for the 5th wheel.

Shouldn't the axle ratings total be more than the GVWR?

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Old 10-20-2017, 02:43 PM   #2
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No. The weight is carried by both the axles and the TV. 2,500 pound pin weight, for example, two 6,000 axles totals 14,500 GVWR for the trailer, in my case.
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Old 10-21-2017, 10:42 PM   #3
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Exactly. On a motorhome the axles ratings should exceed the GVWR since they bear all the weight. Trailers are different.
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Old 10-21-2017, 11:41 PM   #4
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One would hope that axle ratings were as high if not higher then trailers GVWR

BUT.....pin weight on 5th wheels 20%-25% of total weight (Tongue weight 10%-15% TTs)

Axles carry the rest of the total weight

Our 5th wheel had 6K axles standard for a 14K GVWR
We upgraded to 7K axles with 8K leaf spring packs
Wet pin is 3090# so axles are carrying 10,783# (13,873# scaled weight on a 14,375 GVWR)

The OEM 6K axles would have been 'adequate' but only a ~500# per axle margin.
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Old 10-23-2017, 09:55 PM   #5
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Since you're asking about axle weight AND going to be soon-to-be Full-Time RVing, weighing your new rig will be in your near future. Attached is a doc that will help you in that area.

God luck with your new rig.
Attached Files
File Type: pdf Best-Tire-info-and-Weigh-Form.pdf (447.2 KB, 7 views)
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