Wrong TCase in my 2012 Rubicon
JK Jedi Master
Joined: Feb 2008
Posts: 12,907
Likes: 185
From: Maine
Brought my 2012 4 Door Automatic Rubicon to the dealership as it would not drive in 4 Lo. Basically would roll down hill then skid the tires and do this over and over. After a few visits to the service dept and a overnight in the bay they found that I have the wrong Transfercase. It has the 2.72 gearing versus 4.1 and the computer didn't know how to handle it in 4 lo since it was suppose to have a 4.1.
Just passing for SA something you all should consider checking
Here is a pic of the Tcase on my 2012 Rubicon...
Attachment 297090
Just passing for SA something you all should consider checking
Here is a pic of the Tcase on my 2012 Rubicon...
Attachment 297090
JK Super Freak
Joined: Aug 2011
Posts: 1,262
Likes: 1
From: Mount Hope, WV
JK Super Freak
Joined: Mar 2010
Posts: 1,246
Likes: 1
From: Out of Conntrolicut
And this:
Effin' sad but there have been instances in the past. Hope to god not the truth (Dealer trying to recover from your last Rubi) or it is time to release the krakken (And no not Cop's either LOL)
Thread Starter
JK Enthusiast
Joined: Apr 2008
Posts: 239
Likes: 0
From: Colorado Springs
Ref the poss of a swap, the jeep did not sit on the dealers lot it came from the factory this way. I plan to check the rotation of the tires to the drive shaft to see if I have the right gearing. Should be one turn of the tire to a little over 4 turns of the shaft if I understand correctly. It has the swaybar disco and the buttons for lockers. I will have to check the lockers when I can drive it in 4 lo.
I asked the dealer to pull the diff covers to make sure my gears were not what was locking up and causing damage. I will be able to see the locker but other then turning the tire I am not sure how to tell if they are 4.10's Anyone?
JK Super Freak
Joined: Jun 2008
Posts: 1,071
Likes: 1
From: Attleboro, MA
Your test you mentioned is correct -- except you actually want to do two complete turns of the tire, while counting the revolutions of the driveshaft.
I can't help but (half jokingly) wonder if Chrysler erred in my favor with my Sahara. Never thought to look, I just know 4-lo is ridiculously low.
I can't help but (half jokingly) wonder if Chrysler erred in my favor with my Sahara. Never thought to look, I just know 4-lo is ridiculously low.
JK Freak
Joined: Jun 2011
Posts: 534
Likes: 0
From: Whittier, CA
That's a major quality and compliance issue .... I would demand a new vehicle or take it to the media.
Maybe the loaded employees will get a 6.4 Hemi mixed up with a 3.6L.. quick, everyone check under the hood.
Maybe the loaded employees will get a 6.4 Hemi mixed up with a 3.6L.. quick, everyone check under the hood.