Stock axles with larger tires - JeepForum.com
 
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post #1 of 8 Old 06-17-2013, 01:22 AM Thread Starter
ringling09
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Join Date: Apr 2013
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Stock axles with larger tires

I have heard that the stock axles on a 4.0 zj with 31s or above will make it "slow as a turtle" but is it really all that bad? It's not like I would be using my zj for racing or and s*** like that. As long as it gets me from point A to B and I can go wheeling. Any input?

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post #2 of 8 Old 06-17-2013, 03:03 AM
cgcarpenter
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Join Date: Jul 2012
Location: west covina
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What gear ratio do you have

I have 31s on my 4.0 and they do really well with 3.73 gears

If you don't know what they are, request a build sheet from Chrysler or check the metal tag on the differentials
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post #3 of 8 Old 06-17-2013, 03:28 AM
JasonStebbins
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1997 ZJ 
 
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I have 31's with 3.55 ratio and I get around fine. Hell, I can move pretty quick if I goose it.

This is my second 4.0L so I don't know the power comparison to the 5.2L, but I have no trouble getting up to speed if necessary. I honestly didn't notice the difference from stock tires.

Poop
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post #4 of 8 Old 06-17-2013, 04:25 AM
cgcarpenter
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Yeah it wasn't too much for me either.
Except it was easier to burn a little rubber with stock tires lol
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post #5 of 8 Old 06-17-2013, 05:23 AM
baldygo
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1996 ZJ 
 
Join Date: Dec 2011
Location: wilkes-barre
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Quote:
Originally Posted by JasonStebbins View Post
I have 31's with 3.55 ratio and I get around fine. Hell, I can move pretty quick if I goose it.
.
hell ya! try adding front n rear bumpers on top of that too haha but i lover her

if it's too loud, you're too old!
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post #6 of 8 Old 06-17-2013, 05:57 AM
nickhay13
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1998 ZJ 
 
Join Date: Dec 2012
Location: Santa Clarita
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I have 33's with 4.56, steel bumpers, on a 4.0, and I get around just fine.
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post #7 of 8 Old 06-17-2013, 06:38 AM
riot1987
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1997 ZJ 
 
Join Date: Jun 2012
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I ran 31's on my old 4.0 3.73 gears wont be fast but, your jeep was never fast anyways so.. DO IT

http://www.jeepforum.com/forum/f22/riots-97-grand-1436100/

Build thread^^
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post #8 of 8 Old 06-17-2013, 08:06 AM
iser
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1997 ZJ 
 
Join Date: Jun 2012
Location: Fairbanks
Posts: 674
my 5.2 on stock whipped me back when i floored it the first time (my god, i can't imagine what a niner would feel like). my 33" on 3.73 doesn't give me that whip anymore.

- REST IN PEACE, RATMONKEY -

MY BUILD THREAD LINK - Updated on THU 23MAY2013

Specs- 97 ZJ 5.2L - 4" Zone Lift - 285/75R16 Cooper STT
Upcoming Projects- Front Axle Swap. On the look out for HP30.
_______________________________________________

"lead me, follow me or get the hell out of my way"
- gen. george patton
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