Simple question: On perfectly flat ground should my 2017 18-footer be level with the ground (front and back) when connected to my truck? I have an adjustable tow assembly and I see that the front of the RV is low in the front when properly connected to the truck (2013 Chevy Avalanche).
With trailer level you want your ball height to match the trailer tongue height where ball sits. Adjust the ball mount accordingly. If you can’t get it level go with slightly higher ball mount. Weight of trailer will drop truck but WD will bring that back close to level.
Linear Mode
