I dont think youd be able to see anything, the steels and clutches are not too visible. Mine looked fine inside when it had failed. Theyre a pita to rebuild. Assemble a few parts
. take measurements, buy a correct ship, assemble some more, more measurements maybe need another shim. Cant tell what your going to need till you get to the next measurement point. Took ordering a couple of shims for me in different orders and they were around $40 apiece. I guess every rebuild will be different. Did you see if the clutches were grabbing when you had it out?