Hi I have a 49 chevy P/U and it came in parts. I am working on the steering column. I was wondering about the shifter control that mounts on the steering column just above the steering box. I have the old one but don't know the condition or if it needs to be rebuilt. Have not opened it up but there is a hole in part of the box. which looks like a plug in it. Does anyone have a used one or how to rebuild one. Did not find any on line.

Thanks

Bennie