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For the turbo 400, you will need a auto column from a 1966 3/4 ton truck with 327 engine and turbo 400 trans. Only year turbo 400s were available in this series trucks. The column, frame bracket, levers are all unique to the turbo 400 in these year trucks, if you go factory. The correct 3 speed turbo 400 steering column is pretty rare and usually expensive.
Note: the turbo 400s have a straight shift lever at the bottom of the column, on power glides this lever is curved.

Les