Anyone have any experience with these? This one has two pieces. Are they both motors? Have any of you ever scrapped them and did you get "electric motor" price?

They are extremely heavy (about 40-60lbs). I am curious as to whats in them.

http://www.flickr.com/photos/64582621@N08/5892243316/



Close up.

http://www.flickr.com/photos/6458262...n/photostream/

Any expertise you could offer would be greatly appreciated.