so-as suspected- the inner axle(differential output shaft?) is broken.
[Linked Image from]
there should be splines!!!
i can see the stub in the 3rd member, from the rightside, and will experiment with retrieving stub w/o removing 3rd.
'could be interesting to know, for out on the trail...…..
will try remember to report results.

'94 "tracker", with some parts from suzi the psychic.
other modifications made, with more to come.
some intentional.
suzitoo should get me fishing.