Originally Posted by
scoho
Install one side wet and one side dry, and see which one blows up first.

Personally I would suggest a little bit of lube on the tapers. Any time there is metal contacting metal, lubrication can only help, if you would like to be able to take it apart again

A friend of ours had a hitch mount on his car, and left the bike carrier in it. Over time, the metals bonded together, and no amount of persuasion would get the bike carrier off.
Dave