well the diff cannot move so i'd remove the screws one by one then superglue them.then remove the diff brace.
then i'd loosen the 4 engine mounts, mesh it up again on the diff ring gear,threadlock the sucker back in then refit the diff brace using superglue. that shouldnt move then mate.
http://www.nookraceway.com/main.asp
they got a forum so ask away