I have a 400 transmission in a 1969 Firebird. I just had the seal replaced where the gear selector goes in the side of the transmission because it was leaking. The guy who replace the seal said the shaft had a place that he couldn't buff out so its still leaking. He said he wasn't sure if you could replace the shaft. Does anyone know how I can get this problem solved?

If you can locate a replacement shaft, it can be replaced. This shaft had to come out for him to replace the seal.

Here is a photo of the selector shaft and detent plate. The seal is a neoprene and steel piece that press fits in the case.



There is a pin retaining it to the case inside. You remove this first, then the shaft can slide out. The red arrow in this picture points to the end of the pin.

If you can't find one locally let me know. I might have a selector shaft - gotta do some digging in the garage to see if I still have one.

24GO24

Checked tonight. I do not a selector shaft in my pile of leftovers. Sorry.