I'd go by what is on the tires, not the door. I also would not exceed the maximum rated tire pressure on the side of the tire. If you have load rated E tires it more than likely says 80 psi. I tow about 14k lbs. and run the tires on the trailer and truck and the maximum rating on the tire.

 

A tag trailer really needs a minimum of 10% of the weight on the tongue tokeep the sway in check. 15% would be better. I suggest putting all the beer and stuff in the bow to help out. Make sure the trailer tires are at their max pressure as well.
10,000lbs is a big boat, so if you still experiance the swaying, I highly recommend a Reese dual cam sway contol hitch head. Theyreally work well to eliminate sway.

A 3500 should have load range E tires, so 80 PSI should help out with the mushy part.

 

You might want to try air-bags they helped me out I tow a 12K and 14K trailersI put 80lbs. in tires and 70lbs. in bags.

 

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What do you think they are running at?

 

I would definitely recommend the anti-sway bar, and equalizers. We used them on our 36' and 38' travel trailers and 20' and 24' cargo trailers. They were an unbelievable difference on the cargos andwere great for peace of mind. Youhave to pass a semi or get a semi passing youon the interstate and you will be glad you have them.

 

where can i find them?

 

Should be able to get them at any local RV dealership, or maybe a regular utility trailer sales place. Also places like Camping World (campingworld.com) Or anyplace else that sells hitches and parts. But I would say that a local rv dealer would be the one with the best experience in these items as there are different sizes for different weight groups.

 

thanks, i'll check it out

 

please let us know what you decided, and take some pics to share please !!

 

anyone know of any electronic brake controllers that are flush mounted? i want one that i can install in the dash bezel with the exhaust brake button.