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

The phenolic bowls do warp or crack, but not due to heat. You can hit one with a torch and it won’t get hot (told to me by my old parts guy who knows these old rigs - he said a salesman used to go around and do just that, then toss the bowl to someone after pretending it was a hot potato).

They warp or crack due to overtightening of the screws.