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post #1 of 4 Old 01-19-2015, 07:11 AM Thread Starter
SCOOTERMCGAVIN
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1974 CJ5 
 
Join Date: Sep 2010
Location: BURRTON
Posts: 91
My new Jeep

Here is my new to me 1990 YJ, I am wondering what kind of gears I need for a lil more on road driving, 55-60 is about all she will go with out pushing it, and high revving the motor, not sure whats in it, but would like to have an idea of what it needs to be, 33" tires are on it, thanks.

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post #2 of 4 Old 01-19-2015, 09:52 PM
98TJcomeonuh
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2005 LJ Wrangler 
 
Join Date: May 2011
Location: ringgold
Posts: 463
Well if its a 4 cylinder w/5-speed 4.88's

4 cylinder auto 4.56
6 cylinder w/5-speed 4.56
6cylinder auto 4.10
That's my personal opinion, others my be different. But you can go to Grimm jeeper and punch in your numbers and such and look at the Rpm's at certain speeds.
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post #3 of 4 Old 01-19-2015, 09:56 PM
98TJcomeonuh
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That's assuming you have the d30/35 combo.
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post #4 of 4 Old 01-20-2015, 07:05 AM Thread Starter
SCOOTERMCGAVIN
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1974 CJ5 
 
Join Date: Sep 2010
Location: BURRTON
Posts: 91
It has the 4.0l with an automatic, carbureted engine, and not sure if they are stock axles but i am assuming they are.
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