shimming was not an option, there is simply no room, unless you have slob on your parts.
cvd's where the same length, also could not find a bent pin or shaft.
as said earlier i installed a new toe/squat block and that helped a little. if taken the whole thing apart to measure, but could find any thing longer than another. limiting shock travel seems the only way to go.
never had this problem before, so would like te hear if anybody has the same issue with there hingepins coming out of there diffcups when fully compressed and hingepin is sitting vertical.
thx for the advice so far guys!
seems metalmikey's option should work to limit travel
gonna test it tomorrow.