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Old 03-24-2012, 09:52 AM   #1
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33s what gears do you run

I have a 4 in zone lift and 33 km2s now my stock gears 3.07 just isnt cutting it on I6 with a 5 speed just want to know what gear you all run and what you think of them. im looking into 4.10 but am open to other options i dont see speed over 55 very often and dont do alot of wheeling atm since its my only ride
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Old 03-24-2012, 09:57 AM   #2
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there are a ton of threads about this and i think for a 5 spd u need 4.56 or 4.88 i cant remember. 4.10 is good for 3spd auto

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Old 03-24-2012, 10:02 AM   #3
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I'm running 4.10's with 33's, not optimal for maintaining 65+ mph on hilly highways, but not horrible (i shift to 4th on long uphills) but i have the I4

I swapped rear axles and had a extra set of 4.10's for a rear and sold it to a guy who works for Dana, and he was going from 3.07's to 4.10's on a I6 with 33's.

mainly by doing 4.10's instead of 4.56's (or 4.88's) is the 4.10's were stock gears and can be had cheap from those who have swapped axles and have them laying around and want to sell cheap.
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Old 03-24-2012, 10:11 AM   #4
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With a I6 5speed you need 4.56 I have 33 km2 as well and I have the stock 3.73 gears not to bad. I can easily hit 75. Well.. the speedo says 75 my GPS said 82
3" BDS, 1.25" JKS body lift, 1" Zone motor lift, 35x12.5 GoodYear MT/Rs

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Old 03-24-2012, 10:18 AM   #5
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4.56s is what you want.
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Old 03-24-2012, 10:33 AM   #6
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4.56s is ideal, 3.73s work fine for me. I6 5speed as well.

Requires some downshifting at times, but still drives everywhere fine.
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Old 03-24-2012, 10:42 AM   #7

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3.73 here also, I can live with it. I6 5 speed. Gotta downshift on some hills, but highway cruising is good.
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Old 03-24-2012, 10:48 AM   #8
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Definitely 4.56s with a 5 speed and 33s. Thats the setup i have now, and you will not regret it. It's like having the Jeep return to stock form..
1997 TJ SPORT 4.0L, Ford 8.8 locked, AX-15, 3.5" of lift, 33" BFG KM2, SYE & UCF TT, JKS disco's, Warn 9.5ti, MetalCloaks
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Old 03-24-2012, 10:50 AM   #9
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4.56is what you need. I love how it drives and has a nice crawl ratio
|2004 Jeep TJ "Green Machine"|4.0L 5 speed Dana44|33x12.50x15 Goodyear Duratracs|2.5" OME HD coils + 1.25" body lift|OME NitroSport shocks|4.56 gears|Skid Row Engine Skid|BCC Sliders|Currie AntiRock|
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Old 03-24-2012, 12:32 PM   #10
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The funny thing is i can still clean the tires off with the 307s but if theres any wind i cant even think about 5 gear lol
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Old 03-24-2012, 03:31 PM   #11
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I'm running 33s with my stock 4:11s.. Very satisfied with this set up.. 35s and i'd look into 4:56s.. So I'll stick with the 33s.. Nice size and not many mods needed..
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Old 03-25-2012, 07:22 AM   #12

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I installed 4.56's on my 97. I6 and auto. I have since learned the 4.10's would be great with the auto trans, but I really like the 4.56's. Not a lot of highway miles ahead and lots of trails, so I think they will be perfect. Jeep has a ton of low end get up and go!
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Old 03-25-2012, 07:27 AM   #13
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4.56's on my 4.0L 5 speed will be in this coming weekend....
~Todd~ 2004 X 4.0 5 speed---SOLD
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Old 03-25-2012, 07:50 AM   #14
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Here's the best way to figure out what gears you need for your jeep. just put in all the info, and it will show you what RPM and MPH you'll get with what ever gear ratio you might think about going with. Gear Ratio Calculator
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Old 03-25-2012, 07:52 AM   #15
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i6 manual, 3.73 works great for me, wouldn't want them any higher for highway i like staying around 2200 rpm.
If you dont get stuck, you're not trying hard enough.

98 tj 4.0 5 speed aka "rosie"
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Old 03-25-2012, 09:12 AM   #16
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97 i6 auto. 33's and 4.10's 3 speed auto
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Old 03-25-2012, 10:04 AM   #17
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Stock 3.07's with the 3 speed automatic. They aren't awful for my 15 minute daily commute on flat ground lol but i'm in the process of acquiring an 8.8 with 4.10's and probably an hp30 to match.
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Old 03-25-2012, 10:36 AM   #18
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My 3.73s are great for highway driving but suck for crawling. I'm trying to hold off on a re-gear until I can afford to toss lockers in as well.
Wheel. Break/Test. Repair/Upgrade. Repeat
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Old 03-25-2012, 04:51 PM   #19
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3.07's here with 33 Duratracs and I6 5spd. I didn't notice much difference after the lift and tires. Course, I don't really offroad and there's a lot of flatlands around here..
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Old 03-25-2012, 10:26 PM   #20
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I have 3.73's and on the hardball I think they are fine. I have a 6 speed though. It digs off the line and I use 6th often and all the time on the highway. I would rather have 4.10's for the mud, but dont go out often enough to justify the cost of changing gears.

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