Yeah, the replacement seal is flat faced with the rubber coating around the edge like any other seal I've seen. So maybe it's just a different style seal on the face. I suppose I can put a screwdriver under the lip and see if it starts bending or coming off. The new seal doesn't look as big around OD wise, but maybe that's the style of the older seal, it has a sort of cover on it. At least the new seal seems to be the correct ID for the pto shaft. I hope it goes in OK.
Yes, I guess this is a continuation of the other thread, I just thought I'd get better exposure with the real question than adding on to my old thread which people are probably tired of by now.