1. #1
    greg91366@gmail.com's Avatar
    greg91366@gmail.com is offline Junior Member
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    What's in your....Rear End?

    I have a 94 & 95 wrangler. Both 4 cyl and manual. One I can drive to north shore of island in 4th gear other one I have to shift down to 3rd on a few of the hills. RPMS seem the same. The one that does better I just purchased and it has a 4" suspension lift and 31's but someone said maybe they had 33's and re-geared the rear end?
    Does this make sense?
    If so how would I be able to tell?


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    Re: What's in your....Rear End?




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    Re: What's in your....Rear End?

    Do these both have the same size tires? I'd start by looking at the tag attached to the rear differential - it should tell you what gears came in it from the factory. It won't help if it was regeared, but it's an easy place to start

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    What's in your....Rear End?

    If reheated they should update the tag.
    There is a way to tell by lifting and supporting the back end so the rear tires can spin. Then spin the rear tire while counting the shaft rotation and dividing one into the other
    You likely want to mark the tire and the shaft.

    You only need one rotation of the rear tire but more will give a more accurate result.

    There can be other reasons for needing to downshift. Anything that takes away from power of the engine. Tuning, A/C of stuck AC clutch, bad clutch fan, stuck brake....


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    xt master's Avatar
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    Re: What's in your....Rear End?

    As far as supporting the rear and rotating the tires easiest way is Mark the tire and tape a piece of string to drive shaft makes it easier to count the rotations by how many times the string wraps around.

    Jeep! not just a vehicle a way of life.

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    Re: What's in your....Rear End?

    What's in your....Rear End?-20170412_172655.jpg

    Not much, really...

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    Re: What's in your....Rear End?

    Quote Originally Posted by JPNinPA View Post
    If reheated they should update the tag.
    There is a way to tell by lifting and supporting the back end so the rear tires can spin. Then spin the rear tire while counting the shaft rotation and dividing one into the other
    You likely want to mark the tire and the shaft.

    You only need one rotation of the rear tire but more will give a more accurate result.

    There can be other reasons for needing to downshift. Anything that takes away from power of the engine. Tuning, A/C of stuck AC clutch, bad clutch fan, stuck brake....


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    I will try the rotation like you said and see


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    greg91366@gmail.com's Avatar
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    Re: What's in your....Rear End?

    Quote Originally Posted by xt master View Post
    As far as supporting the rear and rotating the tires easiest way is Mark the tire and tape a piece of string to drive shaft makes it easier to count the rotations by how many times the string wraps around.

    Jeep! not just a vehicle a way of life.
    Perfect this should make it easy to see. I'll do it this week


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