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Unread 12-26-2011, 09:44 PM   #1
Maestrorr
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2012 JK Wrangler 
 
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rubicon gear ratio

Is there a reason u would get a 2012 rubicon without the 4.10 gear ratio? I thought it was standard but apparently not. What is standard for 2012 rubi.

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Unread 12-27-2011, 02:02 AM   #2
RogueSpear2023
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They all come with 4.10 gears if it is a Rubicon, if not a Rubicon the options are 3.73 or 3.21.

Other things the Rubi has:
D44s front and rear
Lockers front and rear
front sway bar disconnect
4.10 gears
NV241OR transfer case with 4:1 gear ratio
Rocker protection
Rubicon stickers
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2003 Jeep Wrangler Rubicon
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Unread 12-27-2011, 10:24 AM   #3
222Doc
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No Rubis 012 come stock 3.73. We ordered our 012 with 4:10's at no fee, not sure if they still do it for free on a build out though.

They also have the evap skid plate, i do nothink the other platforms do in 012?

With new v6 3"73 will make it a wee better on the freeways MPG. if you plan to go with bigger tires 4:10 work well with 35"s.
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Unread 12-27-2011, 10:27 AM   #4
nitecop
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THat is really strange, because the new engine is a higher rpm power band and they are lowering the gears.
Truely odd.
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Unread 12-27-2011, 11:54 AM   #5
Maestrorr
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So if I'm going to keep the stock tires for a while the 3.73 is ok? Is the only advantage of the 4.10 the ability to fit bigger tires?
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Unread 12-27-2011, 02:51 PM   #6
Jason
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The stock tires are 32" equivalent. Given the option, go with the 4.10s.
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Unread 12-28-2011, 07:06 PM   #7
RogueSpear2023
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Go with 4.10s you will not notice an mileage difference with 3.73s. Looks like you can get them with 3.73s fiat is out their fricken minds.
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2003 Jeep Wrangler Rubicon
4.0L, 42RLE, Dual Tops, Full Doors, JKS Front Disconnects, Cragar Soft 8 Black Wheels, 33x12.5x15 Goodyear Duratracs, .75" Front Coil Spacers, Bushwacker 6" Flat Fender Flares, Skid Row Steering Box Skid, LubeLockers, Rubicon Locker Mod, OBA, Cobra 19 Ultra III CB, 3' Firestik, Rough Country 2.2 Steering Stabilizer, RC 1.25" BL, RC 1" MML, RC Grab Handles, Fog Lamp Bent Pin Mod, 4" Apline S Series Speakers, Kenwood Excelon 6.5" Speakers, 6.5" JL Audio 6W3V3 Subwoofer (in center console) w/MTX Thunder 202 amp, IPF H4 Headlight Housing, Sliverstar H4 bulbs.



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Unread 12-30-2011, 07:23 AM   #8
IRSmart
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all rubicons up to 2011 have 4.10 gears. for 2012, all manual transmission wranglers have 4.10 gears, automatic transmissions are standard with 3.73 gears with 4.10 as an option. they did this because of the new transmission. with the additional gear in the automatic and the way it is geared, the new 5 spd with 3.73 gears is almost exactly the same rotation wise as the old 4 spd was with 4.10, so in effect, the new 5 spd auto is geared even lower than the old 4 spd.
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Unread 08-15-2013, 04:09 PM   #9
jaw1959
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Quote:
Originally Posted by nitecop View Post
THat is really strange, because the new engine is a higher rpm power band and they are lowering the gears.
Truely odd.
It's not for road racing, it's for rock crawling. I have a '13 Rubi and an '83 CJ-7. The Rubi has 4.10s in the axles, and a 4:1 4L in the transfer case. My CJ-7 has 3.31 gears in the axles, and a 2.62 4L. Running the same trails I've already run in the JK with the CJ feels like a race car, in that I just can't get a low enough gear; I'm in 1st or 2nd, while the JK in 4L, I float around between 1st and 6th all day long, but mostly cruise along in 3rd.

I just realized how old your post was. So uh, yeah...remember that thing you said 2 years ago?
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