post #1 of Old 04-27-2010, 09:00 AM Thread Starter
keithert
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When did JK get upgraded rear axle

I think that in 2008 the JK got the upgraded rear axle on all models. Why was this? Were they having problems with the axles in the 07s? Should I stay away from an 07 with the standard axle?


Current: 2005 Wrangler Unlimited - Past: 90 and 92 Trackers and 98 Wrangler SE
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post #2 of Old 04-27-2010, 09:05 AM
Seanie
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The early 07's came with the Dana 30 or 35, can't remember which off of the top of my head. They're very rare though. The good thing about the 07's is that if it's an Auto with a dana 44, it's got 4.10's.

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post #3 of Old 04-27-2010, 09:15 AM
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Quote:
Originally Posted by keithert View Post
I think that in 2008 the JK got the upgraded rear axle on all models. Why was this? Were they having problems with the axles in the 07s? Should I stay away from an 07 with the standard axle?
rear axle is the same. As mentioned, the early '07 models had a D35 rear. But that was short lived- only some of the ones with a build date in '06 have them. IIRC December '06 builds is when they switched to D44 for all models.

for details and info on our JK's, check out http://n2rock.com

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Hers: '08 X Red Rock, soft top, auto. Bunch of mods

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post #4 of Old 04-27-2010, 09:19 AM Thread Starter
keithert
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Thanks for the info. Was the D35 rear bad news?

Current: 2005 Wrangler Unlimited - Past: 90 and 92 Trackers and 98 Wrangler SE
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post #5 of Old 04-27-2010, 09:28 AM
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Thanks for the info. Was the D35 rear bad news?
Yes- if you wheeled it, you were probably going to grenade it. It didn't take long for Jeep to realize it was a big mistake.

for details and info on our JK's, check out http://n2rock.com

His: '07 Unlimited X, Jeep Green, Hardtop, auto, 5.13, 2.5" RC lift and too many mods to list

Hers: '08 X Red Rock, soft top, auto. Bunch of mods

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If you made a snuggy out of a Shamwow, ....would you have to get up off the couch to pee?
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post #6 of Old 04-27-2010, 09:49 AM
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Quote:
Originally Posted by Nellanaesp View Post
The early 07's came with the Dana 30 or 35, can't remember which off of the top of my head. They're very rare though. The good thing about the 07's is that if it's an Auto with a dana 44, it's got 4.10's.
A friend of mine has an '07, 6 speed, 4.10 gears. He bought it off the lot, not special ordered.
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post #7 of Old 04-27-2010, 10:05 AM
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A friend of mine has an '07, 6 speed, 4.10 gears. He bought it off the lot, not special ordered.
Tow package

for details and info on our JK's, check out http://n2rock.com

His: '07 Unlimited X, Jeep Green, Hardtop, auto, 5.13, 2.5" RC lift and too many mods to list

Hers: '08 X Red Rock, soft top, auto. Bunch of mods

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If you made a snuggy out of a Shamwow, ....would you have to get up off the couch to pee?
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At this point if Obama tried to move a little to the right, he would trip over Stalin's corpse.
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post #8 of Old 04-27-2010, 10:09 AM
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Yes- if you wheeled it, you were probably going to grenade it. It didn't take long for Jeep to realize it was a big mistake.
Not so true. They used that crappy 35 since 1987.

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post #9 of Old 04-27-2010, 10:15 AM
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Sure they used to get away with it but the 35 just wouldn't stand up to the increased HP and torque of the 3.8 I had to!

07 JK 4DR 3.5" Rubicon Express, C gussets, Front XHD stubby, winch, Taboo Customs rear bumper with tire carrier, Taboo Customs Rock sliders.
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post #10 of Old 04-27-2010, 10:25 AM
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Not so true. They used that crappy 35 since 1987.
Yeah- that was one of the mistakes they learned from the TJ

I would like to thank the TJ's for being the guinea pig, so that they could then build the JK perfect!

for details and info on our JK's, check out http://n2rock.com

His: '07 Unlimited X, Jeep Green, Hardtop, auto, 5.13, 2.5" RC lift and too many mods to list

Hers: '08 X Red Rock, soft top, auto. Bunch of mods

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If you made a snuggy out of a Shamwow, ....would you have to get up off the couch to pee?
Quote:
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At this point if Obama tried to move a little to the right, he would trip over Stalin's corpse.
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post #11 of Old 04-27-2010, 10:26 AM
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Tow package
Nope. It didn't have it when he bought it. Tow package not on his build sheet, either.
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post #12 of Old 04-27-2010, 10:29 AM
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So then maybe this is a dumb question but chalk it up to being a Jeep newbie... why is the D35 unsuitable for the rear axle but still suitable for the front axle? You have to get the Rubicon to get a D44 front axle. Unless it just has to do with the duty rating and that the rear axle is always engaged versus the front axle only part-time.

"My other car is..." Who needs another car, I'm driving a Jeep!
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post #13 of Old 04-27-2010, 10:31 AM
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They don't use it in the front either. The front is a Dana 30 on all JK's except Rubis.

07 JK 4DR 3.5" Rubicon Express, C gussets, Front XHD stubby, winch, Taboo Customs rear bumper with tire carrier, Taboo Customs Rock sliders.
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post #14 of Old 04-27-2010, 10:38 AM
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Quote:
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Nope. It didn't have it when he bought it. Tow package not on his build sheet, either.
Rubi, Auto, Tow package- those were the standard 4.10's in '07

Sounds like your friend found an oddball.

for details and info on our JK's, check out http://n2rock.com

His: '07 Unlimited X, Jeep Green, Hardtop, auto, 5.13, 2.5" RC lift and too many mods to list

Hers: '08 X Red Rock, soft top, auto. Bunch of mods

Quote:
Originally Posted by tlgraham View Post
If you made a snuggy out of a Shamwow, ....would you have to get up off the couch to pee?
Quote:
Originally Posted by Deepskyy View Post
At this point if Obama tried to move a little to the right, he would trip over Stalin's corpse.
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post #15 of Old 04-27-2010, 10:39 AM
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Quote:
Originally Posted by N2rock View Post
Rubi, Auto, Tow package- those were the standard 4.10's in '07

Sounds like your friend found an oddball.
He appreciates his good luck. He bought it after the Lifetime Warranty started, too
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