did you locate a rear diff ?. i've got an old one ( and yes..all years are the same ). I don't know the shape its in ?, but even if its in good shape ?, i'd doubt I would part with it, they are far and few to find, and i'd like to keep a spare for my '89 trx350D foreman 4x4. your best bet would to be look on ebay or salvage yards.