Update on this has to be funny. GM fixed the pinion seal leak. But in their effort to inspect and ID the gears in the differential , the differential back cover leaks more than the PS from before. They put some kind of grey pematex like seal. I hope oreileys parts store will come up with the right 10 bolt round cover gasket tomorrow. This something I can do. They never ID the gears. Here is a paper they found that is similar to mine. Evidently , the side /spider gears have play in them.
~ BD. "You won't find me in an old folks home" Pioneer Florida Cracker 1958 Apache Stepside 1958 Apache 1/2 ton Panel 1959 Apache 1/2 ton Panel
