That is probably a early, pre 1961, big car, C body size rear end shruggy
Did you take it out of the housing? If so did it have tapered axles with threaded axle ends and nuts holding the brake drums on? If so it is pre 1965 up

Last edited by Cab_Burge; 06/03/20 01:50 PM.
Mr.Cab Racing and winning with Mopars since 1964. (Old F--t, Huh)