How many of us are there? Owners of Dodge based RV's?

There ya go Chris... you have Griff's blessing on the Doorman's.

BTW... I don't change them all the time. I had one break back when I first bought the RV, replaced them all. Had one of those break on our way home from Florida this past Christmas. Fortunately we had just pulled into a rest stop for the night and were looking for a level spot for the night. When I replaced them... I figured THERE is a part I should carry spares for... so... we were covered.