The best way to pick out a weight distribution system is to base it off of the loaded tongue weight of the setup when it is loaded and ready to tow. This figure also includes the weight of any cargo behind the rear axle of the tow vehicle. I attached a help article on determining tongue weight for you to check out as well. You will want the loaded tongue weight of your setup to fall right in the middle of the tongue weight range of the system you use.
That said, there aren't going to... view full answer...
We have exactly what you're looking for, part # 118710. This adapter will plug into the existing European-style 7-pin and convert it to a US spec 4-pole trailer connector. view full answer...