I've recently acquired a 1979 Cadillac Seville and was told it was a posi. I pulled off the rear cover and it has the S-spring carrier. Is this an Eaton or an Auburn? I counted the teeth at ended up with 47-21 which I think is 2:24. Wow! Talk about highway gears. I got the car cheap and mostly interested in the BOP TH400.
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