can anyone please decode my rear end GM33. thankyou

look on the passeger side axle tube about six inches inward from the leaf spring on the upper part.it will be stamped into the housing you will probably have to remove grime,grease etc. to be able to see them. a wire brush works good. post them back here and someone will decode.

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70RS 327 PHASE 2 BOWTIES 11.1 3.73 POSI UNDERGOING TOTAL RESTORATION
JIMMY