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Jeep Wrangler Tires and Wheels

196 messages,  Last post on Dec 02, 2009 at 9:55 AM

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What is this discussion about? Jeep Wrangler, Jeep Wrangler Unlimited, Jeep Scrambler, Jeep CJ-5, Jeep CJ-7, Tires, Wheels, SUV


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#79 of 196
Re: 31 all terrian BFG's on TJ [jeepincarnate] by erickpl
Aug 30, 2007 (7:42 am)
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Replying to: jeepincarnate (Aug 29, 2007 8:07 pm)

31" tall tires are NOT the culprit in the rubbing. It is the WIDTH of the tire, most likely 10.5 vs the 'stock' 30x9.5 available with the Sport models.
 
You can fix this problem in a few ways:
1. Make steering stop adjustments as shown at 4x4xplor.com's website
2. Go with wheels with less backspacing than the stock 5.5" that come on most Jeeps (other than Rubicons).
3. Add wheel spacers. I run 1.25" Spidertrax spacers on my stock Jeep Canyon wheels so I have an effective backspacing of 4.25". They stick out a bit more. I have 33x12.5" tires.
 
31" tall tires are more likely rub when flexing offroad and stuff a bit into the fender well. Proper fix for that is to adjust the bumpstops located 'inside' the spring at the top. If you look at that area, you'll see what I mean.
 
When I put my 33's on, I also regeared my differentials from 4.10 to 4.88 (2.5L engine here). That combination of 4.88, 33's and my transmission actually made my speedo MORE accurate than it was previously (I had gone from the stock 28" tires to 30" tires prior to the 33's).
 
Getting the speedo set back to accurate will require you to know your tire size and your current differential gearing. Look at this information and you can tell which speedo gear you'd need.
 
http://www.raingler.com/jeepReference/speedoChart.html
 
A lift does nothing more than allow to fit those bigger tires. If you only want to go to 31's, a lift isn't required. Having said that, Jeeps do LOOK better when lifted a bit and they perform even better offroad when lifted as you have better clearance under the axles with those larger tires.
 
-Paul
#81 of 196
jeep wrangler unlimited 2008 by jaigohil
Dec 30, 2007 (2:33 pm)
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With a 17'' rim whats the largest tire i can fit without rubbing ca anyone help?
#82 of 196
Re: jeep wrangler unlimited 2008 [jaigohil] by erickpl
Jan 02, 2008 (9:01 am)
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Replying to: jaigohil (Dec 30, 2007 2:33 pm)

Rim size is irrelevant, except to the pocketbook.
 
For fitment, you need to consider the overall tire diameter (32, 33", etc) and the wheels backspacing. Backspacing refers to the wheel's offset and how far in or out the wheel sits in relation to the rest of the Jeep.
 
TJ's stock offset is 5.5". I added 1.25" spacers to mine to reduce the offset to 4.25". As a result, the lower backspacing sticks the wheel out further. I'm not sure what the offset is on your JK's wheels, but if you have a stock height JK, you can probably run 32's or 33's w/o lifting. At least that is what I THINK I've heard.
 
-Paul
#83 of 196
? death wobble fix ??? by jim03tj
Jan 18, 2008 (11:22 pm)
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As a new member I have been reading the posts and I do believe I have the "death wobble" on my 03 sport. What causes this and how do i fix it? I have 3" spring spacers, 32x12.5 mickeys on 15x10 rims, (back spacing is 4.5). I had to change out the stock shocks, and steering stableiser. Would the dropped pitman arm eliminate this, or is it something else ? I am looking to get a set of 33x12.5's in the next week or so, but I dont want the same problem with the wobble. Any help would be great, thanks
#84 of 196
Re:? death wobble fix ??? by jim03tj by yjbob
Jan 20, 2008 (6:15 pm)
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There are many posts about death wobble in the main Jeep forum. Often it comes from anything being loose in the steering system. Have a buddy move the steering wheel slowly back and forth while you look underneath for any signs of looseness. Good luck.
#85 of 196
Re:? death wobble fix ??? by jim03tj [yjbob] by jim03tj
Jan 23, 2008 (10:16 am)
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Replying to: yjbob (Jan 20, 2008 6:15 pm)

Thanks for the advice,I did have a buddy of mine look for looseness, and we found none as far as drag link, ball joints,etc. Since my last post I did change out the pitman arm. the wobble seems to be gone, but now I have another problem. When I first tried to get the pitman arm off, I used a pickle fork. After beating on the pickle fork the pitman arm didn't drop, but the shaft out of the steering box did !!! about 1/4". I then used a pitman puller to get it off. Now with the steering shaft lowered, I have slop in the wheel. Is there some way to adjust for the slop or did I just wreck the steering box ? My steering wheel is not straight as well. Should I have adjusted the drag link ? thanks, Jim
#86 of 196
New Jeeper with a 1990 Wrangler Islander by disney1971
Feb 28, 2008 (7:37 pm)
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Hey Tom (or anyone else out there) can you help a new jeeper? I just bought a 1990 6cyl Islander and wanted to do some mods to it. I was looking at a body lift and some wider tires but am unsure about the hieght of the lift and size of the tire. I want to be able to do the off roading as well as the drive around town. Any suggestions?
 
Thanks,
 
Disney
#87 of 196
Re: New Jeeper with a 1990 Wrangler Islander [disney1971] by erickpl
Feb 29, 2008 (5:51 am)
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Replying to: disney1971 (Feb 28, 2008 7:37 pm)

I can't address the lift specifics because I'm not accustomed to leaf springs vs coils, but you should be able to do a 2-3" shackle lift for an easy lift. You can also do a SOA (spring over axle) lift but that will cost more I think. As for tires, I think with either of those plus a body lift, you could easily fit 33's, but a lot will depend on the wheel's backspacing. You'll want wheels with about 4" of backspacing (factory TJ wheels are about 5.5") so they stick out a bit further to allow turning and flex offroad.
 
Check out some of the online vendors and I'm sure you'll find something you can use. I just don't know enough about YJ suspension manufacturers to tell you specifically what would be best for you.
 
Then you have to factor in budget. You can go TOTALLY crazy with it too.
 
-Paul
#88 of 196
Dunlop Radial Rover RVXT by roadburner
Mar 09, 2008 (2:21 pm)
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Well, I can't say enough good things about the Radial Rover RVXT tires that I fitted to my 1999 Sahara. The tires are all-season but also carry the severe winter service "Snowflake on the Mountain" rating. My gravel farm road got hit with over 12" of snow this weekend and the old Jeep negotiated the entire 1/2 mile in 2WD with no drama whatsoever. Ditto for the snow covered public roads. The RVXT isn't a serious off-road tire, but it merits consideration if your primary concern is being able to handle wintry weather.

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