Blender FBX imported into unity distorts and moves pieces of the model.

I have created a model in Blender to use in unity. The model in Blender looks just fine:

http://s414.photobucket.com/user/xJames720x/media/tank_blender.png.html?sort=3&o=1

However when I import the model into unity, it looses its shape and ends up looking like this:

http://s414.photobucket.com/user/xJames720x/media/tank_unity.png.html?sort=3&o=0

As you can see the pods on the bottom of the tank are all distorted and misplaced. I tried messing around with Unity import settings but I couldnt seem to make anything better. What am I missing here?

Thanks for any help!