Must Motor home lights be on to tow a Jeep Cherokee?

Oh, another thing I spotted yesterday. I walked along next to the set up while my wife drove it through a series of figure 8s in a large parking lot. I noticed for the first time that there was a lot of "slop" in the main bushing and yoke on the tow bar. I don't recall that from years past. The tow bar is a Roadmaster Sterling, but it's at least 10 years old, maybe 12. I'm thinking I'll order anew bushing, yoke and bolt to tighten up that slop. Has anyone else done that?