Sam and Chris, so don't start jumping on the salesman to hard! I think if you do a little checking your 2500 HD with a 4.10 rear gear might have been capable of towing that fiver. so some numbers that you need to provide and understand;
Dealing with your truck AKA TV (Tow Vehicle).
GVWR (Gross Vehicle weight rating)Total weight allowed to be carried on the TV wheels.
Payload (Real world) Difference between your TV GVWR and actual scaled weight ready to pull your trailer.
GAWR This is the max weight allowed on each axle, the total will be greater than the GVWR.
GCWR The total of TV and trailer, this number is based on engine power and gear ratio, for the same engine, the lower the rear gear ratio the bigger the number gets. Lower gear ratio has higher numbers, a 4.10 is LOWER than a 3.73.
Now the 5er.
DRY weight (AKA Shipping weight) this is brochure weight of the base model. You should NEVER use this number to figure if you can tow this trailer. You can use as a starting point, then ADD to it, weight of options, weight of battery, weight, of full propane tanks, weight of the "STUFF" you currently carry in your trailer.
GVWR This is the maximum the trailer can weigh, pin and wheel weight. This is also the number you need to look at for GCVW, if if the weight of the TV ready to tow and the trailer GVWR is slightly over the TV GCVWR you might be OK, as very few of us load the traile to the max.
PIN (AKA hitch) weight, is the DRY Weight placed in the bed of the TV, it WILL increase as you load the trailer.
You CAN increase the GCWR of your TV, simply by having a lower gear ratio installed in the differential.
You can't increase the GVWR, or axle ratings.
