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Old 09-23-2009, 12:47 PM   #1
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33" on 2.4L

I know i'm opening the can here but I want 33" on my '06 2.4L

If I lift it up 3-4" put on 33's what problems am I going to run into? Am I gonna be able to push them OK on and off road? How important is it to re gear it If I do that because I really don't want to, I think my gearing is 3.73.

Does anyone here have a 4cyl with 33's? what did you do/how does it run?

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Old 09-23-2009, 12:51 PM   #2
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What tranny do you have? Autos are far more forgiving of big tire size/axle ratio mismatches than manuals are. I'd think you will end up wanting to regear your axles once the 33" tires are installed no matter what though.

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Old 09-23-2009, 12:57 PM   #3
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6spd manual

What would I want to re gear them to?
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Old 09-23-2009, 01:00 PM   #4
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The 6-speed has some pretty decently low gear ratios which give a tad more power. Typically the four-banger and manual tranny gets regeared to 4.88 for 33" tires but I think you could get away with 4.56 too with that particular transmission. I'd go 4.88 if you do technically difficult trails or 4.56 if you do mostly streets with milder offroad trails.
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Old 09-23-2009, 03:01 PM   #5
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I run 33's on my 2.5l with a 5 speed with 4.10's it was ok I put in rubicon axles with 5.13'd and it feels amazing now.
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Old 09-23-2009, 06:52 PM   #6
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I've been told with that setup 4.56 is what you want my buddy even did some calculations and agreed it will put you close to stock. I have an 06 2.4l myself but decided to stay away from 33's cause I've been hearing with that dana 35 you have in he rear 33's will wear ot down and break pretty quick. I have no experience with that setup with my jeep though. Just something to think about.
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Old 09-23-2009, 07:22 PM   #7
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I ran the dana 35 with 33's and wheeled it. If your careful with less skinny pedal you will be fine but the minute it spins then hooks on the rocks you will toast it.
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Old 09-24-2009, 09:22 AM   #8
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Thanks everyone, Not sure If I want to get into re gearing I might just lift it up for more clearance and stick with 31's
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Old 09-28-2009, 10:59 AM   #9
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I can run 31" swampers with no lift right?
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Old 09-28-2009, 12:19 PM   #10
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^correct
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Old 09-28-2009, 12:37 PM   #11
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So how wide can I go then?
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Old 09-28-2009, 02:25 PM   #12
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I have 33 x 12 1/2's with 4 cyl.

I've 'wheeled it with no problems. Stock Dana 35 in back, no locker. 4.10 gears with 5 spd. manual.

There is a big difference in power, on the street, between the 33's & stock tires. You will not have the same power. I would like to regear to at least 4.56's some day, when money allows. For rock crawling, I've been told to invest in or invent a hand throttle/wire set-up for the more technical spots. Keep the rpm's up and still have brake/clutch/gas control.

So, to answer OP's question, it runs fine. You go slower.

Are you sure you have 3.73's ?
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Old 09-28-2009, 04:33 PM   #13
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There's no tag on the diff...It's an 06 se 6 spd.. I'm pretty sure it's 3.73 but not positive. I don't care about going slower on the highway but how about off-road? I would be worried about snapping the axle with the 33"s.

I don't rock crawl but I love the mud and trails.
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Old 09-28-2009, 07:00 PM   #14
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There's no tag on the diff...
Odds are your axles are 4.10/4.11. Look on the front diff for a tag if the one on the rear is missing. The tag will always be located at the differential cover's 9 o'clock position and held in place between two of the differential cover bolts.

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