Do you have a Chevy truck? Does it have this diff? Do you just have a diff? Did you find a diff for sale? What are you doing or wanting to do?
I would take a moment and consider upgrading, for a million reasons. The '63 to early '70 12 bolt is the same width as your Eaton HO32/33. Usually Limited slip in those days were for 4X4 and hauling. Now a days it's for that, but much more for acceleration.(Hot Rodding) Why would you need Posi in an old truck or why add it now? It IS going to be hard/impossible to find new parts and very expensive if you do. Car parts probably don't fit truck parts.


Right is right, even if everyone is against it, and wrong is wrong, even if everyone is for it. - William Penn