Bill,

What makes you say it's an Eaton?

I've torn apart at least a half dozen of these rearends and I can confirm they are GM. I did the 5.43 upgrade to my COE a year or two back.

I don't know where the flange w/that seal in pics 2 and 4 came from. It shouldn't be from this rear end.

Jeff

My 1953 Chevrolet
1947.1 Gallery
1972 C-10 1/2 Ton & 1972 C-30 1 Ton