I bit the bullet recently with my van. Just buy the best AT kit you can
afford, and get it to a good rebuilder. The guy I took it to cleaned the
whole thing so good, i could eat off of it, and i had to replace the
differential, too. Cleanliness above all with auto transmissions. The case
shouldn't be bad, just the seals, unless it was previously pounded in, then
you're in trouble. Good luck.

H�ctor