Trying to remember exactly where I got the part number. My car is a '67, but I can't recall if I got my hands on '67 Parts book for that one or might have used a later book. However I just checked 1968 book and that's the number listed for all models using an automatic with column shift.
p/n 2883 211 and its listed in the steering section 19-46-44 as Pin, steering column gear tube switch, w/ auto transmission column shift.
