Make sure it's the motor making the noise and not the transmission. Motor is part 18 on this diagram. http://www.partselect.com/MultiModels.aspx?ModelNum=MAH6500A&SearchTerm=motor&RefineSearch=0
You need to gain access so you can see the motor and observe whether or not it's running during the spin cycle and if the noise is coming from there. There is an access panel on the rear you may be able to see the motor from there. If not take the back off. Here's a diagram of the cabinet.
Answers & Comments
Make sure it's the motor making the noise and not the transmission. Motor is part 18 on this diagram.
http://www.partselect.com/MultiModels.aspx?ModelNum=MAH6500A&SearchTerm=motor&RefineSearch=0
You need to gain access so you can see the motor and observe whether or not it's running during the spin cycle and if the noise is coming from there. There is an access panel on the rear you may be able to see the motor from there. If not take the back off. Here's a diagram of the cabinet.