As a follow up on Jere's note,
>From observation not part number check,
"Tiger" steel wheels have a raised area around the lug nut
that the Alpine wheel does not have.
And I would bet more than a few Alpines left Rootes with "Tiger" wheels.
The "Tiger" wheels break around the outside of the raised area.
I suspect the cause of failure is two fold, over torqueing the nuts
and bigger (wider) / stickier tires than original (with some spirited
driving thrown in).
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