Originally Posted by Thunderhorse
Starting in the 2013's Chrysler has used a TorSen style LSD rather than a clutch pack style LSD. This eliminates the problems you are asking about, however it makes it a lot more expensive and difficult to change your diff gearing if you ever want to do that. The 2009-2012 LSDs use clutch packs.
In the 2014 owners manual it says you need to add friction modifier on a 1500 antispin but not for the 2500/3500. The only time I have seen that you need a friction modifier is with a clutch type LSD. My Chevy has a factory locker (not a clutch type) and doesn't need modifier. If the 1500 had a TorSen would it still need a modifier?