2004 Jeep Wrangler 33" to 37" tires??? - JeepForum.com
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post #1 of 18 Old 01-20-2020, 10:13 AM Thread Starter
banksj1250
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2004 Jeep Wrangler 33" to 37" tires???

Trying to run 37's on my stock Wrangler, I have 33's right now. Been looking around for everything that I would need to change, but I know I'm leaving something out???

Anyone who has done this and has a list or something I can start from? I'll do the research, just need to know WHAT to research!!!

So far I'm looking at gear ratio, suspension and body lifts.

2004 Jeer Wrangler Sport
2" lift currently with 33x12.50


THANKS

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post #2 of 18 Old 01-20-2020, 12:53 PM
superjay5ive
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I don't think anyone will recommend you run 37's on the stock drivetrain. Not even the rubi Dana 44's are up to the task. Plus you would need to stretch your wheelbase. 35's are max for a stock TJ if you at least have a 44 rear. Brakes, tierod will need to be addressed for 35's at the very least along with gears. If you have a rear 35, you will need to address that. The list can go on and on depending on how you plan to use your jeep
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post #3 of 18 Old 01-20-2020, 05:38 PM
orviston
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That is not true. You can do 38” ez on a rubi.


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post #4 of 18 Old 01-20-2020, 06:42 PM
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That is not true. You can do 38” ez on a rubi.


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Nothing “ez” about it, unless you are sticking to the mall. Nothing about a stock TJ ruby drivetrain is up to the task if you a planning to wheel it. And the stock brakes would make it dangerous on the street.
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post #5 of 18 Old 01-20-2020, 07:54 PM
YellerJK15
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Quote:
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Quote:
Originally Posted by orviston View Post
That is not true. You can do 38” ez on a rubi.


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Nothing “ez” about it, unless you are sticking to the mall. Nothing about a stock TJ ruby drivetrain is up to the task if you a planning to wheel it. And the stock brakes would make it dangerous on the street.
I would have to agree with Nashville TJ. I'm in a 2015 Sahara on basically 33.5's and I missed my own driveway by 10 feet the other night haha. Even with the small change from 32.1's to 33.3's (granted they are load rating E, so slightly heavier) brakes are a must. I'm already thinking of upgrading mine because stock jeep brakes, just like the headlights really suck. So I would imagine there's quite a few changes you would discover need to be made, either before or after you make the switch to 37's. (Just my .02 cents)
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post #6 of 18 Old 01-21-2020, 04:32 AM
TheBoogieman
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Can you? Yes. Should you? No. This Rubi with 37s was parked nearby and I checked it out and talked to the owner. Stock (axles, gears, brakes). It didn't even have adjustable control arms. MC flares / 4" lift with Fox shocks and a Big t-case drop too. I wouldn't want to drive it, even on the street.
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Rubi 37 3.jpg   Rubi 37 2.jpg   Rubi 37 4.jpg  

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TheBoogieman is a jerk.
03' Rubicon/Zone 4" coils with 1" spacers up front/Rancho shocks/5.13 gears-35" MTZs/BM brakes
99' XJ / 5.5" lift / Rancho shocks/33" DC Extreme country MTs. Jeep #18
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post #7 of 18 Old 01-21-2020, 08:53 AM
tworley
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Stick with 35s. Even then you are going to spend some serious money.

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post #8 of 18 Old 01-21-2020, 10:25 AM
TheBoogieman
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Stick with 35s. Even then you are going to spend some serious money.
Can't I just put a 3" BL and 4" SL on my Jeep with my 3.07 gears and run 37s? I had a 2.5L once.

Quote:
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TheBoogieman is a jerk.
03' Rubicon/Zone 4" coils with 1" spacers up front/Rancho shocks/5.13 gears-35" MTZs/BM brakes
99' XJ / 5.5" lift / Rancho shocks/33" DC Extreme country MTs. Jeep #18
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post #9 of 18 Old 01-21-2020, 11:44 AM Thread Starter
banksj1250
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Thanks for this! I'm starting to lean towards the 35's now. Saw some other posts that recommended 35's vs the 37's. My truck has 37's right now so I was hoping just to use these and not have to buy 35's. Probably cheaper and better for the Jeep to just do the 35's.

5.13 gear ratio for the 35's the best bet???
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post #10 of 18 Old 01-21-2020, 11:58 AM
Ironhead
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what trans do you have?


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post #11 of 18 Old 01-21-2020, 02:47 PM
Jerry Bransford
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what trans do you have?
X2. That type of information should have been entered into your Profile.

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post #12 of 18 Old 01-21-2020, 05:05 PM
tworley
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Plenty of reading here on what it takes to run 35s:
https://www.jeepforum.com/forum/f9/i...-my-tj-751873/

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post #13 of 18 Old 01-22-2020, 12:54 PM
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Ugh. I don't miss these kinds of discussions.
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post #14 of 18 Old 01-22-2020, 11:44 PM
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35s are perfect on a TJ.
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post #15 of 18 Old 01-27-2020, 02:00 AM
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Quote:
Originally Posted by TheBoogieman View Post
Can you? Yes. Should you? No. This Rubi with 37s was parked nearby and I checked it out and talked to the owner. Stock (axles, gears, brakes). It didn't even have adjustable control arms. MC flares / 4" lift with Fox shocks and a Big t-case drop too. I wouldn't want to drive it, even on the street.
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