Inspiron 7577 Hard Drive

My 7577 came with a SSD only and I am trying to add a 1TB hard drive in the empty bay.  I have a WD black 1TB that is 9.5mm in height.  When I try to close the back, it is slightly too tight.  There are two pieces of cushioning tape on the back side of the back cover over the hard drive that I could remove to give me more room.  My first thought was to call Dell Technical support and ask them what the maximum drive bay height for hard drives were.  The first technician kept giving me the computer dimensions.  When I told him that he hung up on me.  I called back and the next technician told me that adding a hard drive would void my warranty and he could not help me with that.  I asked to speak with his supervisor.  After waiting 15 minutes, the supervisor came on.  I explained to him what I wanted.  He put me on hold for 15 more minutes and then told me that information was not available to technical support and to call sales!  I can't remember when I have worse customer support.  Imagine a computer company that cannot give me drive height requirements!  

Does anyone know what the maximum drive height is?  Has anyone installed a 9.5mm hard drive in a 7577?  

Thanks.