1968 GMC 250 In-line 6 Rear Mail Seal

[68gmcdude]

Hi folks...
I'm starting a new thread as my previous thread was under a different title but has resulted in my current issue.

I replaced my rear main seal with a Fel Pro seal (part # BS40013). After replacing it, the rear main is leaking just as bad as before. I've recently discovered that there is another rear seal made by Fel Pro that has the lip offset so that it seals on a different area of the crankshaft. It is part # BS11829-01.Has anyone ever used this rear seal and if so have you had success?

Attached is a picture of my crank (as best as I could get when i had it apart).

Here is the link to my original post that has some rear main seal conversation in it. https://67-72chevytrucks.com/vboard/...d.php?t=837356

Thanks for your help and advice.