Hi Jim,
I think I read where the condition you have may be
caused by running the tires at too low air pressure. Or, grossly out of
balance. Certainly you wouldn't think that all four would be out of
balance. So, I opt for the running at low air pressure.
As I recall, I only had one tire that was cupped on
the inside. Don't know how old the tire was or what experience it had in
towing.
So, what is the angle of your torsion
arms?
'74 Argosy, Joy
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