Just happened to us! I'm very grateful to the OP and responders for all the intel! I'm mechanically enough inclined, and will probably use Loctite 640 sleeve retainer and not go to the extent of pinning. Mainly I don't want to tear the whole thing down to get the shaft out. Does anyone know how far the ring gear is supposed to be up into the housing? I see that an earlier post mentioned their ring gear was coming out along with the planetary head. Mine shows about 1/16" below the housing, so it may be coming out as well. There appears to be quite a bit of room above the gear. Wondering if I should try to tap it all the way home, or just what? Update: I called Kitchenaid, and not surprisingly they have never heard of this issue! So much for an honest company! But they did provide me a phone number for a repair facility, which I called. I spoke with a friendly helpful appliance repair tech. He said that the shaft would have to be removed because there is vertical play, and if you attempt to tap the planetary...