It acts like a girder reinforcement inside the rocker panels.
Since the 62 and 63s Convertibles (Tempest+Lemans) do not have "wash n dry" rockers as used on all 64 and up GM A body cars. I am sure GM used some kind of special metal or treatment to normal steel but thicker metal and perhaps it was galvanized.
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Peter Serio
Owner, Precision Pontiac
Last edited by Peter Serio; 02-02-2012 at 01:08 AM.
Reason: spelling fix.
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