Just like the title says a lower steering column cover for the above vehicles. 1966 and 1967 B bodies. It is maroon in color even though it doesn't look it in the pics. $20 plus the ride from Walton NY 13856. New ones are $60.
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That looks like a 67 cover. Most 66 covers I have seen are metal and are smaller for the column. All of the 67 covers I have are plastic, like your picture.sale pending