Rear hitch skid wheels
We have a very steep entrance to our driveway and scraped the end of the hitch bar HARD, with the long rear overhang I wasn't surprised. I put on one of the metal skid wheels that attaches with the hitch pin, worked ok but left marks on the driveway and made a horrible grinding sound.
Ordered a set of polyurethane coated wheels with swivels from Amazon. Took about 10-15 min to install, another couple of min to grease swivel and axel. When we left the house yesterday the trip down the drive was smooth and noise free. I think this was a good investment since I don't have to worry about scraping the back anymore. They have skid wheels with and without the swivel, after thinking about the side force that would be generated if I was turning I went with the swivel.