I have a 2012, it is not awesome as it is a bit heavy, but it sure is sweet when I get to the trails. I don't get the tow bars that store on the toad. Especially a JK, you don't want that getting in the way on the Jeep if you are wheelin. I use the Blue Ox and the bar stows on the MH and you can barely see anything on the toad.
Tranny doesn't matter, warranty isn't voided. All is good where that is concerned.
2013 Discovery 40G, 2012 JK Rubicon TOAD1, 2014 Grand Cherokee TOAD2. 2013 RAM 1500 Longhorn. American Steel = American PROFITS!