tranny question

ok. my dad has my 90 GS now and he wants to rebuild the tranny. well, we found a rebuild kit for a laser. i think its the same tranny and stuff. but my dad said when he called a junkyard they told him that the 90 laser was just a little bit different then the galant tranny. so will the rebuild kit for the laser tranny work for the galant tranny? they said something about a control unit or senser wire or something.

i got these numbers off the galant tranny.

F4A222MQ04
HM4778

ok, and also, my dad found the rebuild kit from a dealer here in town. but he wants to know if any of you recomend a certain brand or a good place online to get one?