help! Audi Q7 steering rack issue.
 

My Audi Q7 2009 3.6L. Since two weeks ago, there was liquid leaking from steering rack boots.
I want to replace steering rack by myself, but can't take it out. I have removed all screws and ball joints, and the steering rack was disconnected with steering wheel. Although, it could be swung, but still can't take it out.
Any idea? thanks a lot.