The differential was disassembled as shown in the pics (did someone need a specific part from it? or were they trying to confirm size?); so, it was already on the ground--another reason I ask if I should take it--it's removed already.
Could have been someone snatching one part. They put the removed parts real nice back in the cover. Usually someone that know what they are doing.
I’d assume you could buy any parts that are missing. Not a good idea to assume though.
if it’s a 3.21 gear ratio stamped on it.. take it.
If it’s 2.45 ratio don’t take it cause the case won’t accept larger gears.
mid it’s 2.9_3? It your call and you better have a factory manual if you plan to put it back together... or hope you can put a post here on FABO to help you.