We were at a state campground in Ohio. I backed up into our spot (but not all the way). I got out and looked under the back of the coach.
I noticed that the transmission pan was about an inch above the concrete parking block. I could back up all the way to the concrete (with the tires up against it) and both the transmission and engine pan would be clear. But if I parked it directly under the concrete block there would be a chance that the back of the coach would rest on the transmission pan.
I didn't back it up all the way, but just so the transmission was free and clear.
As I leveled it, the back came down a little and the front of the coach was raised a little. I attached a photo that may be hard to vision but the transmission is about an inch lower than the concrete block and the engine pan was about an inch higher.
I'm just saying that when we park the coach beware of the concrete blocks.
Some of the .Gov recreation parks that we camp in require that I put the concrete between the tire and trans pan in order to get the car parked in front. The first thing I check is the back higher or lower than the front then park as needed.