Short answer "NO"..... not necessarily.so should i just go with a bumper pull instead of a gooseneck or 5th? the tow capacity is 12k it does have a class 4 hitch and i can get a weight distributions at 12k.
See my picture. That is a 38 footer hitched up. 13,800 trailer gross on the placard. Trailer axles are 6,000 each, and the pin weight should be 1800 lbs. I never load the trailer axle to the 12,000 total. But filling the front closet and the basement can over load the pin.
The limiting factor for me is the truck rear axle. Tough to keep the pin weight under 2000, so that when the trailer is on the truck the rear axle is under 6000 limit.
Empty (what ever weight that is), that trailer pulls beautiful!!!
Loaded up rigged and ready, I know it is heavy and drive accordingly. I weight every chance I get if I see an open highway scale. The gross combination on mine is usually about 21,500, so the axles are the limiting factors.
If your truck has the fifth wheel, ask the dealer to let you weight the truck and trailer. Then think about where you are going to add the 2000 - 3000 of supplies and stay under the limits. Don't go by the "cargo carrying capacity" ( CC) on the placards. Go by and think about the ACTUAL WEIGHTS when loaded. You will accumulate junk in both the truck and the trailer that changes the CC. So weight the rig.