Bernie -
I doubt if the problem lies in the steering column, but more likely has to do with the transmission's internal parking pawl and gear - and not the only car made to ever suffer from that.
Have you checked our site's
Packard Service Index? It is an online reference to factory-published, supplemental service infomation, and there are several entries relative to parking lock in the
Twin Ultramatic section for the 1955-56 cars.
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