It is a D60 carrier from front CUCV axle which had 4.56 gears. Includes spider gears so you can run open, weld, or throw in a lunbox type locker.
Dana 60 carrier break is 4.10 down/4.56 and up
Will need a new roll pin to go through cross pin if not welding spiders, carrier had tack welds on outer case as backup in case of roll pin failure which have been ground smooth (see last pic). No issue with cross pin seating surface. $40