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Old 03-19-2015, 06:00 AM
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tire size for 3.73 rear

How big of a tire could I put on my 1997 Wrangler 4.0 with 3.73 rear without having to change anything and still not hurt anything? I have a two inch lift kit on it and 17 inch rims

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Old 03-19-2015, 06:20 AM   #2
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31" tire will work best with stock gearing.

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Old 03-19-2015, 07:49 AM   #3
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^^X2 Running 31x10.50x15 good trail manners & still plenty of power for the highway.
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Old 03-19-2015, 07:53 AM   #4
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I have 33s with 3.73s and I do just fine on trail and on road i baby my jeep on road anyway so being slow from take off isn't a problem for me. Also I can do 85 down the freeway without an issue
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Old 03-19-2015, 08:07 AM   #5
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agreed, 33's and my 3speed auto were fine with 3.73 gearing.
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Old 03-19-2015, 08:12 AM   #6
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been running 33's for 7 years with no issues.
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Old 03-19-2015, 08:20 AM   #7
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I guess I am the exception here I'm on 33's for 2 years w/3.73 w/5 speed manual and it sucks. Lacks power on the road and 5th gear is useless unless going down hill with the wind... I am suffering thru it and will be regearing for 35's come fall.
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Old 03-19-2015, 08:48 AM   #8
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31's were great 33's kinda suck going down the road and crawling in 4lo with a manual transmission. Personal preference though.
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Old 03-19-2015, 11:36 AM   #9
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Why not regear for your 33's? I believe there's a lot more than regearing to run 35's, but it makes sense if you're heading toward 35's anyway.
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Old 03-19-2015, 11:41 AM   #10
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agreed, 33's and my 3speed auto were fine with 3.73 gearing.
X2- works for our mild off roading.
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Old 03-19-2015, 12:38 PM   #11
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Because I knew it was temp and I have a d35... No use in regearing that when I knew it was going to be tossed any way. It would have been a waste to regear 2 times at least to me.

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Why not regear for your 33's? I believe there's a lot more than regearing to run 35's, but it makes sense if you're heading toward 35's anyway.
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Old 03-19-2015, 05:38 PM   #12
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And I'm waiting until I have the money together for lockers and chromoly axles before re gearing.
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Old 03-19-2015, 05:56 PM   #13
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i have 373s on an 03 tj with 32 in tires and really have no issues can use 5th gear on mild hills and flat land and can cruse 80 or so on the highway.it also does great off road but i dont really beat my jeep.
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Old 03-19-2015, 06:43 PM   #14
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You might be able to get by with 33" tires, but 31" tires is more realistic.
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Old 03-20-2015, 08:17 AM   #15
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X2

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and i'm waiting until i have the money together for lockers and chromoly axles before re gearing.
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Old 03-20-2015, 08:23 PM   #16
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I am running 31" Tires with 3.73 it originaly had 3.07's the 3.73's are great with 31's I don't think I would go over 32's with the 3.73 ratio to maintain all around driveability.

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