With regards to the article link that Illflem posted, I emailed the writer of this article the following email:
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I enjoyed reading your "Comparing Trucks" article you wrote but I have one comment. You wrote the following two paragraphs:
"Contrary to conventional wisdom, Crow said the GVWR - gross vehicle weight rating - doesn't have anything to do with towing a trailer.
"The GVWR has to do with how much you can carry on the truck," he said. "That rating is important if you outfit it to be a beer truck or dump truck. Anybody with a trailer should be concerned with the GCWR - the gross combined weight rating. The GCWR is based on the weight of the truck and the weight of the trailer together. That's what horse people need to know about. "
I would like to point out that although this may not be an issue with medium duty trucks due to their high GVW and probably not as overstated GCWR, GVWR has very much to do with towing a trailer. GVWR has very much to do with towing a trailer as the tongue weight directly adds to the GVWR and can quickly overweight the truck before the GCWR is reached (especially in light duty applications). This is especially true for readers of your article that pull with 3/4 ton light duty pickups (which far exceed the number medium duty pullers pulling horse trailers). The 3/4 ton pickups have a GCWR in excess of 20,000lbs on many 3/4 ton pickups. If GCWR was all that was important, it would mean that one of these pickups that weighed in at approximately 7,000lbs could tow a 13,000lb trailer without having to worry about being overweight. This however is not the case. To tow a trailer of that weight, the trailer would have to be a fifth wheel or gooseneck with a pin weight of at least 25% to pull safely (this is considered the 'norm' and is suggested by the manufacturers). Using the 25%, this would bring our tongue weight to approximately 3,250lbs. With our 7,000lb fictitious truck, with a GVWR of 8,800lbs, this tongue weight would bring the weight of the truck to a extremely overweight 10,250lbs. This would be grossly overweight, and in fact is overweight even for a single wheel 1-ton let alone a 3/4 ton.
What I'm getting at in this message is that although GVWR may not be important with medium duty trucks (GCWR with light duty manufactures is a marketing scam in my opinion and can only be reached on a trailer with too light a tongue weight to safely go down the road), it is not an affective (or safe) rule of thumb for light duty truck owners which probably makes up the majority of the people that have viewed your article.
Sincerely,
Michael Ingoglia