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Old 03-14-2012, 09:09 AM   #1
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Tires/Lift question?

I recently purchased a 02 TJ and I would like to put some bigger tires on it. I used the tire conversion chart and the tires on here now appear to be 30.5 on 16 inch rubicon wheels. I drove my jeep over to a local offroad accessories store and the guy there said that he didnt think that there was any lift on my jeep currently. So one of my questions is, what is the best way of determining if the previous owner had any lift installed. I'm not super tech savy as well.

I was thinking of putting 33" tires or 31"s. Can anyone give me any advice to the pros and cons of either. There are currently goodyear mudders on my jeep that humm and drive me crazy at any speed. I like the offroad look but would prefer something more streetable like the BF Goodrich A/T like Ive had on my trucks in the past. Ill enclose a few pics of my jeep in hopes of some one being able to see if they think I could cram 33" in my wheel wells without any modifications w/o rubbing.

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Old 03-14-2012, 09:14 AM   #2
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Can you get a better pic of the shocks? RC Shocks are silver like that. the 2.2 have a rubber "bumpstop" at the base of it. The silver on the shocks/springs make me guess its an RC lift, looking at the tire placement in the back compared to the frame, I'm going to guess 2.5 inches. Looks like quick dicos in the front sway bar links as well.

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Old 03-14-2012, 09:14 AM   #3
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Nice looking jeep great platform to start with. I'd say you could run 31's with out rubbing to run 33's your gonna need to lift and you will also want to strongly consider regearing for 33's. I don't know first hand but allot of ppl on here say nothing but great things about the Rubicon Express lift for great ride in a lifted jeep. Have fun with it!
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Old 03-14-2012, 09:17 AM   #4
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Ill go snap a shot of the front and rear shocks
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Old 03-14-2012, 09:23 AM   #5
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Heres a shot of the front and back, and yes it does have a sway bar disconnect.



Thanks
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Old 03-14-2012, 09:35 AM   #6
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yup, thats them alright.
I'm betting if you put a tape measure to the front springs you'll see 14.5 inches in length, that will equal a 2.5 inch lift that's installed.
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Old 03-14-2012, 09:40 AM   #7
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yeah thanks to your help i was able to find them here on this site and I would agree it looks like the 2.5 kit
1997-2006 Jeep Wrangler TJ, 2.5" Suspension Lift Kit at Morris 4x4
They recommended a 31x10.5 if this is indeed the lift. If I decided to go the extra and put 33" on it what would be the best/cheapest way to accommodate the tires? Also if I were to put 33x12.5 on here would the offset on the Rubicon wheels allow that?
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Old 03-14-2012, 09:44 AM   #8
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You could always throw a body lift on there, 1.25-1.5 " would be the MAX body lift I'd do. I think once thats done you would be able to run 33s without any issues at all. You can run 31's on a STOCK wrangler, so between the suspension lift and a body, those 33s should tuck without issue.
However, since I don't run 33s I do NOT know this for a fact. I'm sure someone else will chime in soon to clear it up.
I can tell you I have nothing but the exact lift that you have, and I'll be putting 32s on my ride, and do not expect a bit of issue.
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Old 03-14-2012, 09:52 AM   #9
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Thanks forthe advice. On my old Wrangler I think I had a 2 inch suspension lift and 31"inch tires with american racing wheels. I liked the tire to wheel well proportion. Its not all about height to me but rather look/proportion. It seems that running 33" might be more headach than its worth. I never though about 32"s. My though was that if I had 30.5 on it now, albeit worn down from new, and I wasnt happy with the proportion, then adding a 31" inch tire wouldn't be that much of a difference to justify the expense. Any Idea if 32"s would sneak in there without my headache. I don't really plan on doing much off roading as where I live its kind of hard to find anywhere.
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Old 03-14-2012, 09:53 AM   #10
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Side notes...
It doesn't look like your bumpstops are extended to go with that lift. If thats the case then in max flex you will bottom out the shock (could bust shock or mount) or cause coil bind.
The offroad place should have been able to measure to see you had a lift, I did it from pictures, I wouldn't go there anymore... or at least not let them work on my stuff.
You need to find your gear ratio, as mentioned earlier, once you are up on 33s, if you have 3.07 gears, you are going to hate life. regearing is also pretty damn expensive and both front and back have to be done at the same time.
Get yourself a spec sheet to see what your jeep came with, better yet, search on how to find out your gearing on your own. Since the PO changed out the springs.... maybe they changed out the gears as well..
Happy trails, and keep the rubber side down!

32s would fill that up nicely!
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Old 03-14-2012, 09:55 AM   #11
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My old jeep with 31"s
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Old 03-14-2012, 09:59 AM   #12
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Youve been very helpful, much thanks for your time. Would 32" require me to do any additional changes that you can tell? IE spacers, gearing etc? I'm definitely looking for the easiest and cheapest solution to achive the look I want. And yes I wont be going back to that 4x4 shop.
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Old 03-14-2012, 10:08 AM   #13
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We're all here to help one another, I'm happy I could give you some advice (generally its me getting it from the others LOL). Nice looking jeep you use to have!!
32s and gearing. I honestly don't know. You shouldn't need any additional spacers to run them though.
The first thing to do would be to find out your gearing. There is often a tag on the rear axle that will tell you the factory gearing. I'd start there, while you are doing that, check to see if you have a rubber fill plug in the back or a metal one, this will tell us if its a Dana 35 or Dana 44.
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Old 03-14-2012, 10:11 AM   #14
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will do...ty
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Old 03-14-2012, 10:13 AM   #15
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Quote:
Originally Posted by Blueliner
Youve been very helpful, much thanks for your time. Would 32" require me to do any additional changes that you can tell? IE spacers, gearing etc? I'm definitely looking for the easiest and cheapest solution to achive the look I want. And yes I wont be going back to that 4x4 shop.
I have 32s with 3.07 gears and I can still use my 5th gear until I start to climb a hill but I'm planning on regearing/different rear end cuz I climb a 7% grade everyday and its about 2 miles long kinda sucks climbing tht wit 3.07 but u could get away wit it if ur not driving over too many hills
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Old 03-14-2012, 10:19 AM   #16
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Yeah 90% of my driving is quick round town trips and Im willing to have a little gear inconvenience. My 78 corvette is a 4 speed and with all the work ive doe on that Im used to that.
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Old 03-14-2012, 10:22 AM   #17
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Quote:
Originally Posted by Blueliner
Yeah 90% of my driving is quick round town trips and Im willing to have a little gear inconvenience. My 78 corvette is a 4 speed and with all the work ive doe on that Im used to that.
Well then it would b tht bad I use my 5th on the freeway all the time and I have power still and holds speed fine just steep hill u loss the power if u can deal wit tht then u should b fine wit 32s and not regearing
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Old 03-14-2012, 10:26 AM   #18
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im looking at the bf goodrich a/t 31.6 x 10.4. Does anyone out there have a 2.5 lift that is running these size tires so I can see what it looks like?
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Old 03-14-2012, 10:52 AM   #19
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I don't have any pics of that tire to offer but I ran a 2.5" lift and 31s on my old Jeep with no issues.

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Old 03-14-2012, 10:54 AM   #20
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I'm running the RC 2.5 lift with Duratracs 31x10.5-15 planning on doing the body lift and motor mount lift to run 33's next.
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Old 03-14-2012, 11:02 AM   #21
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I'm running the RC 2.5 lift with Duratracs 31x10.5-15 planning on doing the body lift and motor mount lift to run 33's next.


That's the plan with my next Heep... Then I'm going to highline the fenders when I get ready for 35s.
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Old 03-14-2012, 11:23 AM   #22
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maybe a stupid ? but i assume a 31.6 tire is considered a 32". when people are referring to 31 inch tires what is the actual tire dimension?
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Old 03-14-2012, 01:58 PM   #23
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maybe a stupid ? but i assume a 31.6 tire is considered a 32". when people are referring to 31 inch tires what is the actual tire dimension?
Depends on the tire... If you go to the manufacturer's website of the tire you're interested in they will likely have the outside tire diameter listed somewhere.

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