Last year I had to park my 13-foot Scamp
on a steep hillside at a teardrop and vintage trailer gathering. I had to make several attempts with my Ranger pickup to get the ball and coupler lined up with the Hitchin' Rods.
I would back up until the rods were close together. I would set the parking brake on the truck and get out to see where the hitch ball was in relation to the coupler. I might have even turned the engine off and put it in gear for extra safety.
I would then pull forward a little and try again, turning the steering wheel to make an estimated move based on what I saw.
It might have taken three tries but I did get the ball and coupler lined up with no one else around. Almost everyone had left the event. Those that stayed behind were helping to put stuff away.
This was a very steep hill I had parked on for four days. I put pictures and information about this in another discussion on chocking wheels. Here's a link to that thread. My message is #31:
2 or 4 wheel chocks for a single axle trailer?
My backyard isn't absolutely flat where I sometimes park the Scamp
. I back up until the rods are close together. I have to get out at least once to make sure that the ball is lower than the coupler. That is critical. I can then see the relationship between the ball and coupler.
Once I make sure the ball is below the coupler, I back up very slowly until the rod on top of the ball falls off. I am now in position to lower the coupler onto the ball.