We tow a 2008 Dodge Dakota behind our rig (see sig). We don't even know it is back there. Put the transfer case in neutral the tranny in park and leave the key in the on position. The one thing we have to do is to disconnect the negative battery cable. If you don't the battery will discharge. I think there are disconnects that you install so you won't have to do this.
Jerry and Janell & Westie dog Gus (Augustus McCrae)
Navy by record Marine by choice
2005 Bounder 38N DP 300 CAT 2014 Jeep Wrangler