Thanks everyone for the input!
I never would have thought to put mouse traps under the unit....until it would be too late.
I appreciate all of your input and advice. I am so happy to be able to ask questions of people who are speaking from first hand experience instead of taking the word of a salesman. (Not that salesmen are bad.....)
New owners of 2007 3400RL. 2005 Dodge 2500 Cummins HO, 38RE, BW Companion 5er hitch.