I agree you should have received the LA535 loader and the RCK60-30BB mower deck. I would call up your dealer and ask why it was delivered with the other parts. I received the older bucket on my LX2610 but there are really no disadvantages to that. I'm not sure of the changes between the BA and BB versions of the mower deck or if it would make any difference to you, but you certainly should have received the LA535 loader with your tractor.