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Old 03-28-2013, 08:35 AM   #1
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Lift/tires

i have a 2002 sport 4.0 6cyl. manual. my plan as of now is to put a 3" rancho suspension lift. its either that or a 3" full traction economy lift. i currently have 215/75r15 and i was hoping to get 31's with 17" wheels. it has been recommended to do a regear but i don't know to what. i'm assuming either 3.73 or 4.10 but what would be the best choice. right now my ratio is 3.55. also any opinions about either of the lifts would be much appreciated

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Old 03-28-2013, 08:38 AM   #2
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you can run 32's on a stock suspension. I would do a budget boost to gain that little extra clearance.

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Old 03-28-2013, 08:40 AM   #3
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31's on 17" rims. Are you sure about that. They will have a very tiny side wall and errrrrrrr look odd.

Regearing going to 31's really is not worth the cost.
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Old 03-28-2013, 09:57 AM   #4
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Quote:
Originally Posted by manchester View Post
i have a 2002 sport 4.0 6cyl. manual. my plan as of now is to put a 3" rancho suspension lift. its either that or a 3" full traction economy lift. i currently have 215/75r15 and i was hoping to get 31's with 17" wheels. it has been recommended to do a regear but i don't know to what. i'm assuming either 3.73 or 4.10 but what would be the best choice. right now my ratio is 3.55. also any opinions about either of the lifts would be much appreciated
Manchester,

If you want to do a 3" lift, you would want to run at least a 32" tire to avoid there being too much tire to fender gap. I would recommend a 2" BB if you want to run a set of 31's.

That will give you more than enough clearance for the 31's, which in turn will get you more ground clearance and that aggressive look.

you shouldn't need to re-gear to run 31's on a 6 cylinder. The 4.0 has more than enough power to turn them. If you plan on going bigger down the road, figure out what tire size you want to go to then you can figure out the gear ratio you should run.

Here is a picture of a friend of mine's TJ on 31's with a 2" BB lift in the front only. He added the winch and bumper and wanted to level the Jeep back out.




Hope this helps, PM me if you need any other assistance!

-Zach
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Old 03-28-2013, 11:09 AM   #5
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Manchester,

If you want to do a 3" lift, you would want to run at least a 32" tire to avoid there being too much tire to fender gap. I would recommend a 2" BB if you want to run a set of 31's.

-Zach
If i did get 32's would that make enough of a difference to regear or would it be able to handle the difference just fine
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Old 03-28-2013, 11:22 AM   #6
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and what about 16" wheels. would that look weird? or should i just stick with 15"?
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Old 03-28-2013, 11:36 AM   #7
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One thing to look at is what tires are available for what size wheel. Some sizes limit your available tire selection and cost the bigger wheel you go the more money the tires cost.
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Old 03-28-2013, 04:36 PM   #8
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Help with what size wheel needed

Was trying to make a new thread and hit wrong button.
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Old 03-28-2013, 04:42 PM   #9
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I purchased a 15"x8" tracker 8 wheels Monday and had to cancel the order Tuesday. When I read the specs for the tires I wanted, the wrangler DuraTrac or MT/R's 12.50" I found out min wheel width they will fit is 8.5". What width wheel would be best and what backspacing do I need to run 12.5" tire?
I have the duratrac 33x12.5 on a 15x8 rim, runs fine, I have a 3.75" back spacing as well
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Old 03-28-2013, 05:07 PM   #10
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Quote:
Originally Posted by manchester View Post
i have a 2002 sport 4.0 6cyl. manual. my plan as of now is to put a 3" rancho suspension lift. its either that or a 3" full traction economy lift. i currently have 215/75r15 and i was hoping to get 31's with 17" wheels. it has been recommended to do a regear but i don't know to what. i'm assuming either 3.73 or 4.10 but what would be the best choice. right now my ratio is 3.55. also any opinions about either of the lifts would be much appreciated
No need to regear with 31's, I currently am running 31's with the 4.0 with 3.55's, still have plenty of power
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Old 03-28-2013, 05:21 PM   #11
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what do you think if I went with 32's
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Old 03-28-2013, 05:44 PM   #12
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Im running 32's with 3.73 gearing. power is not down much at all I dont plan on regearing!
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Old 03-29-2013, 08:29 AM   #13
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what do you think if I went with 32's
You can run 32's without re-gearing. I know guys that run the 4.0L with 33's and have no problems. The 4.0 has decent power, and the best way to go is to get the tires you want, and drive with them. If you hate it, then look into gearing and power adders.

Shoot me a PM if you have any other questions!

-Zach
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Old 03-29-2013, 10:18 AM   #14
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Thanks everyone for the responses. It's been a big help

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