904 transmission pan gasket

After replacing the speedometer housing seals twice and a nee pan and factory gasket which is now sealed well I am still leaking at that floor shifter baracket holes. I am not an expert on trans and want to know more about the two places you are referring to. So is the first place you are mentioning large tail assembly gasket? I was told this trans was rebuilt but I am starting to doubt it.
Yes and I rarely see them leak. It's usually the rear band pin seal and it'll look like it's the extension housing gasket. You wouldn't believe how many times I've torn apart transmission that were supposedly rebuilt only to find their idea of a rebuild was to just pull the clutch packs and install new clutch discs and slap it back together. Not saying that's what was done with yours but it could be