There are a few good write-ups on this on some of the other fora, do a google search for "mopar lift drive shaft" and you ought to find them in the results somewhere.
I am getting the MOPAR 2" installed this week, will let everyone know my thoughts. For what it's worth, I was also considering the somewhat comparable AEV 3.5" lift or the full-blown Metalcloak Game Changer w/ OME shocks.
Right now, 2015 JKUR bone stock, but Rock Hard 4x4 front and rear patriot bumpers (steel) and a Warn Zeon Platinum winch are ordered and should be on the way from Nebraska shortly. I ought to be able to provide reflections and measurements with stock and weighed down. The bumper/ winch in front and the bumper/tire carrier and 35" spare on the back ought to add about 225-230 lbs each to the front and rear.
Also, have stock Rubicon wheels and tires for now, but that will probably change within the month. I am going 35", and am torn between Duratracs, new KO2s, and maybe Nitto Trail Grapplers? Never had Nittos, but I think they're probably a good tire, if heavy in 35".
I have 1200 mi on it, and went w/ MOPAR after discussing it by email w/ a few guys at FCA in Auburn Hills, and w/ the parts and service departments at my dealer.
The FCA guys told me that the new 2" lift (as opposed to the "old" Teraflex or Rubicon Express 2.5" lifts) is all Jeep's own design, and all Jeep's own original parts made by FCA OEMs (other than the Fox shocks, of course). Knowing these FCA guys wheel at Moab every year with the Jeep factory crew, and they they had input into the new lift, I trust their design and knowledge. This is a pic of a factory Jeep w/ the new 2'" lift. Looks sweet. ImageUploadedByJeepGarage1436121561.983162.jpg
I talked to the dealer (Marin Jeep in Corte Madera CA) about the potential impact on my 3/36 bumper-to-bumper by using somebody else's lift. While I know the lift (and any damage it might cause to other components) isn't covered under the bumper-to-bumper (it has its own warranty), I was satisfied with getting my dealer to confirm orally to me their general position that since the lift is a MOPAR part, it was designed specifically not to change any factory specs, and so it pretty much couldn't ever be the cause of other damage. That isn't really a sound position, logically, but it gets me where I wanted to go. The way they see the MOPAR lift, especially if they install it, it can't be a precipitating cause of some other failure. So yes, I may be paying more than I need to to get 2" of lift, but what I am really getting is peace of mind that they're not going to screw me out of warranty coverage for something else. Now, if they try to, I am a lawyer and am not worried about a fight....
Sent from my iPad using JeepGarage