I don't know what year they ended, but our 1970 will have them after I finish the restoration. I purchased a set of fore and aft aluminum segmented endcaps from Colin Hyde. He sells them precut with the holes pre drilled. I am eagerly awaiting their delivery.
Craig and Carol
1997 34' Excella 1000
1970 27' Overlander, International
2009 Ford F150 5.4L
ProPride hitch with 1400# bars
Past President Southeastern Camping Unit (12)