Von and I have cars from the Baltimore plant. His parts are steel and mine are padded. Sounds like both were available. Our SS396 is also a 300 Deluxe with a February build date. Our other car was late July. Was the steel used before January 1, 1969. Sometimes safety laws came in at that time of year and changes were made. eg. headrests became mandatory as of January 1, 1969. Who knows.
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