07' Rubicon vs 10' sport - Page 2 - JeepForum.com

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post #16 of 18 Old 07-13-2013, 10:39 PM
Rtone1583
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2009 JK Wrangler 
 
Join Date: Oct 2012
Posts: 193
Quote:
Originally Posted by Habber View Post
Sorry guys, I'm a bit of a newbie. Please explain when I would need locking diff. Also if someone can explain difference between sport and Rubi I'd really appreciate it.

Jeep TJ 2001 4.0 5MT
For what sounds like you intend to do you probably won't need the locking diff. The thing is though, the one time that you need them they will have been worth it especially considering the price you can get the Rubicon for.

Speaking of the Rubicon here:

In normal operation the differentials are open. This means that the tire with the best traction is the one providing the majority of forward momentum. Even when running in 4WD the axles are still open and typically only two wheels (one front/one rear) are truly providing forward momentum. With locking diff (front and rear) the axle shafts are locked together, in effect making each axle a solid drive unit and all 4 tires provide forward momentum. Or you can lock just the rear axle while in 4WD and gain that extra little bit push if needed (a situation such as having trouble getting through some mud).

The main difference between the Sport and the Rubicon are the axles, the transfer case and the sway bar disconnects.

The axles in the Rubicon are typically geared at 4.10 versus the somewhat standard 3.73 (could be 3.21) gears in the sport. From what you have described the 4.10 gears would be to your benefit since you intend to go to a 35" tire in the future.

The axles in the Rubicon also have the electronic lockers as discussed above.

The transfer case in the Rubicon is geared at 4:1 low range versus 2.72:1 low range on the Sport. The Rubicon transfer case is beneficial when off road, more specifically when the trail has off camber obstacles that need to be overcome. The lower gear ratio allows for more finess when you need to travel at a slower ground speed.

The sway bar disconnects just allows for more front suspension flexibility when going over off camber obstacles.

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post #17 of 18 Old 07-14-2013, 07:47 AM Thread Starter
Habber
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Join Date: May 2013
Location: Montreal
Posts: 135
Excellent info. Thanks for the differences. Sounds like the sport has more superficial upgrades than the rubicon plus the Rubi has air. Even though the Sport looks great with the lift and 35's, I think the Rubi is more bang for the buck and upgrading the sport to what tr Rubi has will cost more than vice versa. I also can't add AC to the sport so looks like the Rubi is what I should look at. Hope it's still available. Thanks

Jeep TJ 2001 4.0 5MT
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post #18 of 18 Old 07-14-2013, 01:26 PM
suicideking
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2006 LJ Wrangler 
 
Join Date: Apr 2012
Location: Riverside
Posts: 1,092
Quote:
Originally Posted by marmotmb View Post
35's on a sports D30. Could get sketchy quick with any off roading.

Go ruby buy 35's and steel rims
With light wheeling, it should be fine. As mentioned, wouldn't hurt to reinforce if you go this route.

Quote:
Originally Posted by Habber View Post
Rubi has air

Sport no air

Jeep TJ 2001 4.0 5MT
This would kill the Sport for me. Depends on the summers in your area. Mine is a DD and I end up driving around for work sometimes. If it was just a trail rig, wouldn't bother me though.
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