eaz-lift hitch - do they wear out?

I have seen the metal spring clips that keep the spring bars in place in the hitchhead. Always a good idea to carry a couple of extra clips when traveling. The hitchhead CAN wear out if not properly lubricated and it will elongate the holes but with even a LITTLE lubrication it takes a long time. ANY spring will become weaker over time and your bars are nothing but a large torsion spring so in theory they WILL become weaker but again, it'll take a long time. Most likely your indication of them being worn out would be breaking a bar (makes a lot of noise but usually that's about all).
Good luck / Skip