BAD EXPERIENCE with Stephen’ Performance

You have to understand their position... how many times have guys returned parts that weren't what was shipped... was damaged while waiting for the part to be installed or returned because they ordered the wrong part. People lie about this stuff everyday. So you have to see Stephens side of the story... and when you are dealing with 50 year old parts nothing is guaranteed.

That's too easy for a seller to address. Pictures, grease pencil marks, whatever. Easy to overcome with simple and quick documentation.

Sounds like the buyer (OP) was purposefully mislead into believing the guarantee covers more than it actually does.