Probably a stupid questions (balls)
Do you use any kind of a lubricant on the hitch ball?
Forum Discussion
Used to kept it mostly to the front since that was the load and it kept the rear clean for the pants problem. I now have an Andersen hitch and try to keep the ball clean so it is locked to the hitch. It does seem to wear on the ball a bit but lub would negate the units ability to reduce sway. Guessing wear is 2-4/1000ths over the 10,000 miles of use, about 15% not straight highway.
