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Modified JK Tech Tech related bulletin board forum regarding subjects such as suspension, tires & wheels, steering, bumpers, skid plates, drive train, cages, on-board air and other useful modifications that will help improve the performance and protection of your Jeep JK Wrangler (Rubicon, Sahara, Unlimited and X) on the trail.

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Rubi transfer case swap

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Old Jul 18, 2011 | 07:17 PM
  #1  
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Default Rubi transfer case swap

I am planning to purchase a 2012 4-door Sport and am considering swapping the transfer case for the Rubicon model (4:1). What transfer case is in the Sport? What's involved in the sway? Is the swap easy/hard?
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Old Jul 18, 2011 | 07:25 PM
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As long as the transfer case doesn't change in 12 just make sure you get one out of a 6-speed if that's what you have or an auto. Should be a direct swap.
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Old Jul 19, 2011 | 05:52 AM
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Is this something I can do myself? Also what transfer case is in the Sport?
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Old Jul 19, 2011 | 06:16 AM
  #4  
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I believe the Sport ande Sahara editions have a 2.72:1 ratio...can anyone confirm that?
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Old Jul 19, 2011 | 08:25 AM
  #5  
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Sport and Sahara have 2.72:1. Swapping to the Rubi t-case is a direct swap assuming the donor vehicle had the same tranny (i.e. auto or manual). I did it to mine. Took less than two hours.
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Old Jul 19, 2011 | 08:29 AM
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If you are buying brand new, why not just buy the Rubicon? You will get all the other upgrades under factory warranty, no mess, no worries.
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Old Jul 19, 2011 | 05:17 PM
  #7  
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I am debating whether to buy a Rubicon, but it doesn't make sense to me. (I have a 2007 Rubicon 2-door now.) Rubicon 2011 4-door "bare bones" is $33,320. Sport is $26,345. Difference is $6,975.

If I bought the Rubicon, I would replace the wheels and the tires, the electronic sway bar disconnect (just another thing to break and it takes forever to engage/disengage), rock rails (I like a side step/nerf bar), and I hate the weird locker switch that doesn't allow you to engage the front locker separately. Also I don't like the slow engage/disengage of the lockers. Also would regear front and rear for larger tires.

If I bought the Sport, I would replace the wheels and tires, put a DynaTrac ProRock 44 in the front, add lockers and regear both front and rear, replace front sway bar with something better (Currie/JKS), replace transfer case with 4:1 from Rubicon, add rock rails, etc. Sounds like a better use of $7,000.

So, does anyone know the model of the transfer case in the Sport? Does it have a slip yoke? Will I have to replace the drive shafts if I do the swap?

Thanks in advance!
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Old Jul 19, 2011 | 05:32 PM
  #8  
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I would consider selling my rubi t case. I think I'm getting ready to start a build
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Old Jul 19, 2011 | 05:50 PM
  #9  
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Originally Posted by DrOldGuy
I am debating whether to buy a Rubicon, but it doesn't make sense to me. (I have a 2007 Rubicon 2-door now.) Rubicon 2011 4-door "bare bones" is $33,320. Sport is $26,345. Difference is $6,975.

If I bought the Rubicon, I would replace the wheels and the tires, the electronic sway bar disconnect (just another thing to break and it takes forever to engage/disengage), rock rails (I like a side step/nerf bar), and I hate the weird locker switch that doesn't allow you to engage the front locker separately. Also I don't like the slow engage/disengage of the lockers. Also would regear front and rear for larger tires.

If I bought the Sport, I would replace the wheels and tires, put a DynaTrac ProRock 44 in the front, add lockers and regear both front and rear, replace front sway bar with something better (Currie/JKS), replace transfer case with 4:1 from Rubicon, add rock rails, etc. Sounds like a better use of $7,000.

So, does anyone know the model of the transfer case in the Sport? Does it have a slip yoke? Will I have to replace the drive shafts if I do the swap?

Thanks in advance!
I went through the exact same deliberation and decided in rhe long run a Spartan edition was the way to go as I would be pulling almost every part off that I just paid a premium for and would be left with a few bells and whistles and some rubicon decals!

No regrets on my decision. I already plan on swapping a PR44 in the front when my D30 goes bang.
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Old Jul 19, 2011 | 06:50 PM
  #10  
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I wouldn't slam any Jeep - Sahara, Sport or Rubicon. As long as it is a Wrangler I don't like to drive anything else when I can help it.

As one who just did a bunch of mods to my Rubicon, I think it would be hard to accomplish everything listed for $7000 but don't worry, we won't tell your wife anyway. A AEV 3.5" lift, 35" tires, Wheels, Superchips, gears and a few miscellanious parts like differential covers put me over $7000. If I spent money on a whole new axle and lockers, I'd be well into $12K and don't even have good bumpers and a winch yet. Admittedly, I did go overboard on tires and wheels (spending $3500) but it does add up quick. Money well spent I might add but didn't realize how much until I itemized it for the insurance coverage
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