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D30's, how much can it take

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Old 05-02-2010, 04:25 PM
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Originally Posted by Northridge4x4
I agree the prorock is the best way to go but your numbers are a little off.

The pro rock does not come with a carrier so you will need a stock Rubicon locker or a ARB also SO Add approx 750-900 to your list
And add $500 for the Reid Racing high steer knuckles
Old 05-02-2010, 04:58 PM
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Originally Posted by tslewisz
The difference between 5.13 and 5.38 is 4.8%. I have a hard time believing the line of happiness is that thin. OTOH, I wouldn't run 37's with a D30, either.
The difference is at highway speeds. Your tranny want down shift as much, which means you'll get better fuel milage. If you read some of the post's people have written, more people agree that 5.38's are better than 5.13's if your running an auto tranny with 37's .
As far as having d30 with 37's you can buy sleeve's for you axle and c gussets to reinforce your front axle. Some people don't have the luxury of blowing 3 to 4 thousand dollars on new front end.
As far as my personal experience having 5.13's and 35" tires. I would be more happy with 5.38's because there is a lot of hills where I live. Which is Pine Mountain and it's not exactly flat.
So your little 4.8% would make a difference me. And what does OTOH mean. I don't remember learning that word through my 14 years of school.

Last edited by jeepoholic; 05-02-2010 at 05:06 PM.
Old 05-02-2010, 05:14 PM
  #23  
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Originally Posted by jeepoholic
The difference is at highway speeds. Your tranny want down shift as much, which means you'll get better fuel milage. If you read some of the post's people have written, more people agree that 5.38's are better than 5.13's if your running an auto tranny with 37's .
As far as having d30 with 37's you can buy sleeve's for you axle and c gussets to reinforce your front axle. Some people don't have the luxury of blowing 3 to 4 thousand dollars on new front end.
As far as my personal experience having 5.13's and 35" tires. I would be more happy with 5.38's because there is a lot of hills where I live. Which is Pine Mountain and it's not exactly flat.
So your little 4.8% would make a difference me. And what does OTOH mean. I don't remember learning that word through my 14 years of school.
Thanks for taking the time to reply. "OTOH" is not a word. It's capitalized because it's a fairly common Internet abbreviation: On The Other Hand.
Old 05-02-2010, 05:19 PM
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Originally Posted by jeepoholic
I don't remember learning that word through my 14 years of school.
Did you fail a grade?
Old 05-02-2010, 06:03 PM
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Originally Posted by tslewisz
The difference between 5.13 and 5.38 is 4.8%. I have a hard time believing the line of happiness is that thin. OTOH, I wouldn't run 37's with a D30, either.
That difference will determine how often it kicks in and out of O/D. In a manual, that difference wouldn't be as noticable since you control what gear you want to be in.

I know that I didn't really get what everyone was complaining about power-wise(6speed), until the first time I took the jk through the mountains. It sucks when you have to drop it down to 4th gear at like 4k rpm's, just to maintain speed..

Last edited by stlfan06; 05-02-2010 at 06:16 PM.
Old 05-02-2010, 06:23 PM
  #26  
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Originally Posted by jduda
Did you fail a grade?
No,went to public school for 12 years and college for 2 years.
Old 05-02-2010, 06:31 PM
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Ooooh, I thought you might have counted pre-k and kindergarden.
Old 05-02-2010, 06:36 PM
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3 days of hard wheeling, not 1 issue. Specs are in my sig.



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