OP is not only going to be dangerously over payload, but he has documented that fact under his own name, making it easier for injured party's attorney to find it after suing him...

Towing that is irresponsible after being told it is way beyond your vehicle's capacity.

 

If it were me, and the dealer told me 'sure your truck can tow that', i'd be using documented information on payload and towing capacities, and go right back to the dealer and tell 'em they lied or misled me and my truck isn't capable per manufacturer documented numbers....and get a different camper.

 

These trucks can pull a about anything you want it too. Being able to tow it and being able to do it safely are two different things. I've towed 16,000 pounds max with my f150. It was with my 04 with a 4.6. Transmission locked in 1st gear, at 20 MPH max with flashers on. It was on a country road for about 3 miles. That was an interesting experience. One hill I came to i was WOT and 5 MPH was about all it would do. Was it safe? No but using SOME common sense by going slow and staying in low gear I made it happen. With my 05 lariat, most I've pulled so far was a 14,000 pound load. It was a 31', 3 axle enclosed trailer loaded with fire fighting equipment. For about 1/4 mile. I moved it from the maysville training center up to the community college parking lot where we were having training. That really wasnt too bad. The 5.4 has really hood torque. But I wouldn't dare take it in the highway or pull it very far. What I'm saying is, these trucks will handle a lot more than there rated, but you cant go very fast or very far because the transmission might overheat

 

Your ride was bumpy because you're using 12,000lb bars on an trailer that's probably close to 6000lb unloaded. You will need to get the trailer loaded, weigh it, then get the bars that are closest and above the trailer weight.

The only way you can address the tongue weight of the trailer is to put more weight in the cargo area. One bike is not a whole lot of weight. As one example, a Wolf Pack 24Pack14 has a pivot point 7.5ft from the ramp, 11.5ft from the tongue. Doing simple leverage math using an average length bike with average weight distribution and weight of 500lbs, you'll move 80lbs off the tongue with the bike at the rear of the trailer. Lash the bike down at a 45º or greater angle, you'll move more weight. Might want to look into moving tanks rearward. Trailers in that size typically have capacity for 300lbs of fresh water.

Bags don't do anything to stop a suspension from working that sumo springs don't do. Bags and sumos are different designs that do exactly the same thing. Adjustable Vs non-adjustable. Not sure of 'just make a pivot point', the leaf springs being connected to both the frame and axle already create the pivot point, which is the rear axle.

My issue with going over weight, even when going very slowly and carefully, is you can't control the actions of others. Yeah, I can get that 14,000lb tractor on a flat bed where it needs to be without issue if I'm the only person on the road, but what about the person with poor vision that pulls out as I'm about to pass them? The teenager that miscalculates my speed and steps off the sidewalk to cross the street? How fast will I stop with 2.5x the weight of the truck on the ball? How quickly can I turn the wheel without throwing the load off the trailer? Not worth taking the risk when I can rent a 3/4 ton for $40.

 

@Flamingtaco then dont try it on busy roads. Where I towed that 16,000 pounds was on orangeburg road, a country load with little traffic and no one walking. I wouldnt have pulled that load in town with my f150. Your probably thinking how did I stop that much weight? Well it took skills and patience. Gave myself a good 200 feet to stop. Trailer did electric brakes which helped a lot. If your wondering what it was it was a trackhoe on a 24' Gator made trailer. But on country roads with little traffic, you can give yourself that much distance to stop, cant do that in the city

 

Your truck will not safely tow that trailer. Nothing you do to the truck will change that. Until you're able to upgrade to a truck that will tow it, or buy a smaller trailer I'd park it or have someone else tow it to where you need to go.

 

You'll be maxed out on payload with a trailer around 6500 lbs.

My truck can tow a bigger trailer than yours because I have a higher payload.
Kind of sad they advertise a truck that has such a high tow rating yet no way to tow it without overloading the trucks payload.

 

that's why there is always a * or ** after those claims and that really cool white hard to read fine print at the bottom of the screen

 

By changing pivot point is what I am referring to is that the weight distribution hitch will need to be reset up with the rear height when loaded being taller more than likely.