If you swap the generator with the alternator you will need a conversion kit. The Amry made them to upgrade M35s from one to the other. The good news is they are both the same size. So it will bolt right in (I'm assuming your talking GI here). Just change the pully over. I might even have the GI conversion kit, but I'll have to look and get back to you. The alternators are plentiful, but not cheap.