I got my hitch at a Tractor Supply. Large selection of straight or dropped thingies that slide into the square hole on the SUV. I measured how far that was from the ground and then how far my trailer's ball was from the ground when level. Needed a 2 in drop. Then I bought the right size ball for my trailer. Now the electrical
was another issue. My new vehicle has a 4-pin flat, which actually had three pins and a ground. It was essentially female. My 1991 Casita
had a 7 pin round that it was also essentially female. So I went searching, everywhere, for an adapter that was male on both ends. Not to be found. I finally found a wiring kit but it was going to need to be installed on the vehicle, not just a simple adapter. After going 7 different places and making two days of phone calls, I landed at U-Haul
where it turns out they will install just about anything on a vehicle to make it haul a Trailer. For $38 they installed my adapter on my brand new vehicle and tried to plug in my 16 year old 7 Blade round. It fit but it didn't work. The guy at U-Haul
said it was because it was too old and the new male 7 Blade had slightly smaller blades. So he referred me to a man he had heard of who does work for the local RV people (who won't take the risk of installing such things for people) and I contacted him immediately, drove out there and he wired a new 7 blade plug onto the cord on my trailer. All of this is with three little girls in the car that are dying to go camping. The $50 he charged me was absolutely worth getting us on the road that day so as not to miss out on the first night of our first camping trip in our first FGRV. Biggest lesson I learned in all of this is that you can't do any of it over the phone. When searching for the adapter nearly every place I called said oh yeah sure we have that. Then I would get there and both ends of what they had we're not male. If your vehicle and trailer don't talk to each other electrically, I would take it to U-Haul
from the get-go. Good Luck and enjoy!