Tim is right. I'm refering to the one on the outside of the bellhousing. I also didn't mention that my engine is a 54 so the trans and bellhousing my also be. It looks pressed in to me. The 54 is my spare engine. I have to check the one in the actual 49 truck to see if it's in better shape or an earlier bellhousing with the possibility of a screw in pin providing the information all you bolters have provided so far. Right now I'm thinking it is also a 53 or 54 so it may be the smae anyway.
