Here she is. B Body, not A body

I'm curious to see what the axle tag says. Wonder it it's one of those 2.45 flat lander cars....

Pulled the Stamped number on the Housing (no tag anywhere on the rear end that I can find) and came up with 2852805 number, did a search and it's an 8 1/4, but not sure what gear ratio is on it. Any Clue how to find out???