Question: how to calculate gvwr of truck and trailer?
Answer: In other cases, that would be the hub and wheel rating. Either way, the GVWR is determined at the axle. With this method, if your axle rating is 6,000 pounds per axle, and you have two axles, your GVWR would be 12,000 pounds. Other manufacturers take that rating and add the trailer's weight into the GVWR.