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-   -   Gear ratio question. (https://www.cherokeeforum.com/f67/gear-ratio-question-146259/)

holycaveman 08-20-2012 11:26 PM

Gear ratio question.
 
Yes, I have searched.

The charts say that with a 32"tire my xj ratio for an overdrive automatic should be at least 4:88 gears.

What are your thoughts?

Thanks

Atmos 08-20-2012 11:38 PM

year of your jeep and tcase would've been helpful info. looks like aw4/231 on 32's will do 2100rpm @ 65mph with 4.10 gears
this is almost exactly stock rpm's

wiggles 08-21-2012 12:01 AM

Ya 4.10s would be good to keep it stock, if you want more torque you could do 4.56s

SeriousOffroad 08-21-2012 12:02 AM

Use the gear calculator at www.grimmjeeper.com

holycaveman 08-21-2012 01:52 AM

Thanks guys. So the chart was pretty close. I would like it lower than stock. So 4:56 or 4:88's seems spot on for me.

You just saved me some money. I almost bought a 3:73 set.

Thanks

Lowrange2 08-21-2012 06:27 AM


Originally Posted by holycaveman (Post 1970702)
Thanks guys. So the chart was pretty close. I would like it lower than stock. So 4:56 or 4:88's seems spot on for me.

You just saved me some money. I almost bought a 3:73 set.

Thanks

And you would have never noticed the difference.

big_ang 08-21-2012 07:00 AM

Would you need to change both carriers? I'm considering this too while I'm in there to replace leaky seals.

SeriousOffroad 08-21-2012 07:09 AM

Depends on which axles you have.

Xj88 08-21-2012 07:13 AM

I say 4.56

holycaveman 08-21-2012 08:10 AM


Originally Posted by lowrange2 (Post 1970799)
And you would have never noticed the difference.

10 ply tires. I already notice a difference. Its a dog on serious hills and the highway:icon_cheesygrin:

yarom 08-21-2012 09:37 AM

4.10 - going with a different ratio will affect your drive... You also need to change the speedo gear.


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