Interference in multi body part from vendor

Hi,

I am trying to mesh a part that was supplied by a vendor.  The part is a multi body part with some of the bodies interfering.  Most of the interference is from threaded parts.  I have removed as many interfering bodies from the part as I can.  However, there are a couple of bodies that I would like to keep and the interfere.  I have attached a photo showing the interference.

The question, what is the best way to fix this interference so that I can mesh the part?

Also, I am trying to do a thermal simulation.

Thanks

Paul

SolidworksSimulation