I received my new Propride hitch and installed. The installation manual was not easy to understand. No parts description so you really had to guess what they were calling what. I got threw it. It real...
I had the same problem when my 3P was new. I would use the trailer brake controller in the truck to hold the trailer in place while I moved the truck forward a zillionth of an inch. After a few uncouplings, I no longer had the issue.