GoBlue, In some Canadian Provinces the GVWR rating is a real legal number and you can be pulled off the road and ticketed if you get weighed and are over.
This gets posted on rv websites often.
In BC if your weighed for a gross axle or gross vehicle weight it goes like this;
(3) The gross weight of any tandem axles and the gross weight of any group of axles shall be the sum of the gross axle weights of all the axles comprising the tandem axles or the group of axles, as the case may be.
(4) The gross weight of any vehicle or combination of vehicles shall be the sum of the individual gross axle weights of all the axles of the vehicle or combination of vehicles.
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BC says a vehicle has to be registered at a GVWR which may be the truck makers GVWR or the sum of the GAWRs according to what CA members have posted. So sure a ticket may be issued for being over a GVWR.
Anywayz......std duty 3/4 ton truck won't have enough RAWR to carry much over 2600-2800 lb fully loaded pin weight.
The op indicated the truck has a 29xx lb payload number. This sounds like a payload from a gas 3/4 ton as mfg payloads are a GVWR based number. I doubt anyone would like towing performance with a smallblock gazzer at 14k-15k lbs at those weights .
A new gen one ton SRW diesel would be my pick for a 15k-16k gvwr trailer.....or a DRW if I just had to have one.