The right wheel on the Tekonsha Voyager # 39510 you have in your 2006 F-150 is what controls the power sent to the brakes on your trailer, so you will need to hook up to your trailer and go to a parking lot and at around 25 MPH apply the brakes in your truck to see how much braking power is being sent. If the brakes on the trailer are locking the wheels up you need to reduce the gain by rotating the right wheel, and if the trailer does not feel like it is getting enough power to the brakes... view full answer...
Manufacturers do not list the wheel sizes they use on their trailers so the only way to know for certain is to measure the bolt pattern and pilot hole. Below I've attached our printable bolt pattern template as well as our help article on measuring the bolt pattern incase you don't have access to a printer.
If you did have a 15" x 5 on 4-1/2 wheel with a 3.19" pilot hole you would be able to use the Westlake ST205/75R15 Radial Trailer Tire w/ 15" Silver Mod Wheel - 5 on 4-1/2 - Load Range... view full answer...
If you're referring to the way the door swings out on the Everchill RV Refrigerator part # 324-000119, you can actually change this yourself. There are plugs installed into the adjacent holes so you'd just simply transfer the hardware from one side to the other to switch which way the door opens. view full answer...
The thermostat for the Advent Air RV Air Conditioner System # ADV44FR is powered from the controller inside the air distribution box. You would only need to have 12v power ran up to the controller to power the thermostat. view full answer...
The Roadmaster LubeMaster Dry Silicone Spray # RM-747 that you referenced does not have a temperature range. It doesn't need to cure like paint does so it would not need to be used only in a certain temperature range. view full answer...