Tow Vehicle

Go off the sticker in the drivers door.

I'm possibly wrong on this---the vehicle capacity includes gas??? IF so, add the weight of passengers and gas into vehicle capacity.
Are the tow vehicle tires highly weight rated?
Your call, but IMHO, the tow vehicle is a little light to use with this trailer. Most of us on this forum are RVers and have pretty good knowledge. For God's sake, don't listen to a salesperson telling you that "your rig will pull it." Remember that a Toyota pickup pulled the space shuttle.

It almost always comes down to vehicle cargo carrying capacity over gross trailer weight. My CrewMax was rated for 10,400 lbs which is great, but the cargo was 1,387 lbs which is anemic. Once the hitch got lowered I was always over on the cargo. They all love to advertise off the gross tow rating but at the end of the day, check the cargo.

OP still hasn’t posted his/her payload. Hmmm...unhappy?

tow rating don't mean much. your fighting the payload fight. how much payload does your door sticker say and how much will your family weigh?

I wouldn't do it with my truck that has a "#11,000" tow rating... No way, and there are only 2 of us in the truck..

But, I've seen stuff going down the road that I would not tow either, yet there they are going down the road..

Your choice..

Good luck!

Mitch

OP was probably told “..it’ll tow anything on the lot! Honest!” And hasn’t post the payload.

That will be abut 8k loaded for a long weekend with 1000-1100 pounds of TW. Verify your receiver limit supports that. Add weight of your family to TW and verify your Expy has enough payload per driver's door Tire and Loading sticker.

trailer_newbe wrote:
Usually the cargo carrying capacity of the tow vehicle is the killer. My Tundra was well within the CVW of the trailer, but with only 1,387 in cargo capacity, the truck I was alway a few hundred over every time we towed.

The Expedition Max has pretty good capacity, even the nicely optioned one I saw at the auto show had 1700+ pounds, but that's probably not enough for a family of 6 and such a heavy trailer. Over 7k pounds is either max half ton or 3/4 ton territory when you run the numbers. Trailer at 8k pounds and 13% tongue weight is 1,100 pounds after you add weight distribution, 4 kids at 80 pounds each is 320 which leaves <300 for Dad, Mom, and everything else in the tow. The other problem is going to be rear axle capacity, with 1,100 on the receiver and a full passenger compartment you'll probably be well over but it's hard to know without actually doing a CAT scale.

It is simply not a good idea to be over, but tow with what you have and see how it goes. Once you’re in the wind, or a semi passing you, you’ll know. Once you have to go through a mountain pass with steep upgrades and downgrades your mind will be made up. Your not so far over it’s dangerous as long as you give yourself some room and time. For me it took several thousand miles of varied terrain and I knew.