Before the plastic disc came out we used any type of grease on the top plate. Boy what a mess.
Who ever invented and first marketed the plastic disc was a hero. No more mess.
We have several top brands of rv type 5th wheel hitches and can't go wrong with any of them....
Reese has different price range hitches. Much to choose from.
Curt probably is the top seller especially on haulers websites.
B&W is anther top rated hitch with rv folks.
PullRite has a conventional style and a GN ball type
Andersen ...is another GN ball type 5th wheel hitch.
Check each mfg website especially the Andersen and PullRites GN ball type hitch and see their vids on how they work. Do your homework.
"good judgment comes from experience, and a lot of that comes from bad judgment" ............ Will Rogers
'03 2500 QC Dodge/Cummins HO 3.73 6 speed manual Jacobs Westach
'97 Park Avanue 28' 5er 11200 two slides