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-   -   4.56 or 4.88 (https://www.jk-forum.com/forums/modified-jk-tech-2/4-56-4-88-a-171909/)

itsajeepthing91 Apr 4, 2011 01:18 PM

4.56 or 4.88
 
I know this has been talked about frequently but I am looking at buying gears and am stuck between 4.56 or 4.88. My jeep is a 6 speed with a 3.21 gear ratio and its rolling on 33s. I will eventually be getting 35s but I would like to wear these tires out first so it could be up to a year or more before I make the upgrade. So from what I have gathered in my research and from the gear chart 4.88s are way overboard for 33s so would I be better off with 4.56s or would I be disappointed when I went to 35s?

DesignMonkey Apr 4, 2011 01:20 PM

go 4.88. the 4.56 seem to be real tough to get a hold of and the 4.88 with 35's are spot on.

stan at northridge will fix you up - better prices/service than anyone else

GREENJEEP80 Apr 4, 2011 01:54 PM


Originally Posted by itsajeepthing91 (Post 2208954)
I know this has been talked about frequently but I am looking at buying gears and am stuck between 4.56 or 4.88. My jeep is a 6 speed with a 3.21 gear ratio and its rolling on 33s. I will eventually be getting 35s but I would like to wear these tires out first so it could be up to a year or more before I make the upgrade. So from what I have gathered in my research and from the gear chart 4.88s are way overboard for 33s so would I be better off with 4.56s or would I be disappointed when I went to 35s?

I just installed 4.88 with 35's and love it. go with the 4.88's.

kellyII Apr 4, 2011 02:18 PM


Originally Posted by GREEN-MACHINE (Post 2209035)
im just wondering what the rpm's are with the 4.88 and an auto, im going to have two sets of tires 33's for the high way and 35's for off raoding,

Right now I have 4.88's and 33's, doing 70 mph my RPM's are right at 2400.

gerdyj Apr 4, 2011 02:20 PM


Originally Posted by DesignMonkey (Post 2208961)
go 4.88. the 4.56 seem to be real tough to get a hold of and the 4.88 with 35's are spot on.

stan at northridge will fix you up - better prices/service than anyone else

X2 on Northridge, they've got best prices I've seen so far on ring & pinions, and there customer service is great! :thumbsup:

Mark Doiron Apr 4, 2011 02:23 PM

With a six speed: 4.56s and 33s are perfect: I ran 4.10s and it was a bit weak. 4.88s and 35s are perfect: I'm currently running it and love it--would not want gearing any higher, or tires any smaller, though. You need to make up your mind which you want to be.

Olean NY Jeeper Apr 4, 2011 02:45 PM

I have a 6 speed with 4.88s and 34 inch tires. I love the combo and wouldnt mind 5.13s if I had a dana 44. Ur crawl ratio will be awesome with 33s. If u wheel hard stuff at all I say go for the 4.88s. do you do a lot of highway driving?

itsajeepthing91 Apr 4, 2011 03:06 PM


Originally Posted by Olean NY Jeeper
I have a 6 speed with 4.88s and 34 inch tires. I love the combo and wouldnt mind 5.13s if I had a dana 44. Ur crawl ratio will be awesome with 33s. If u wheel hard stuff at all I say go for the 4.88s. do you do a lot of highway driving?

I do a fair bit of highway driving. What drawbacks would I experience with 4.88s and 33s besides poor milage? Excess stress on drivetrain?

jeepjackal Apr 4, 2011 03:12 PM

neither, 5:38 gears with 35/37's

33's IMO are too small for the body,, i think the wrangler is top heavy to begin with,, in my experience, the tires should be bigger to compensate

itsajeepthing91 Apr 4, 2011 03:40 PM


Originally Posted by jeepjackal
neither, 5:38 gears with 35/37's

33's IMO are too small for the body,, i think the wrangler is top heavy to begin with,, in my experience, the tires should be bigger to compensate

I agree I find the 33s look small. My plan is to try and run 35s with no lift and trim pinch seams.


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