I want to upgrade my sad 30x9.5's to marginally larger 31x10.5's. My question is can I put a 31x10.5 tire on my stock 15x7 rim? Is this safe? Are there any issues or problems to consider? Is back space an issue on the stock 15x7s? I am wondering because I don't see it much but I don't understand why? Please fill me in.
Thanks,
Steve
31's on 15x7?
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I think you should be fine.
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I have my 13.5" wide tires on 15 x 8 rims, so you should probably be OK.
However, you should probably think about what you plan to be doing with your jeep. Mine is primarily for off-road use, and the tight fit on the beads help the tire stay on at low inflation. With the tire bulging farther out past the rim, you should theoretically experience less rock rash on the rims (not that I can confirm that - I still have plenty!).
If I were to use the jeep more regularly on the road, I would have gone with a 15 x 10 rim because it would provide a more stable ride on the road. If you're going to be using your jeep mainly on-road, you may want to think about a 15 x 8 rim.
Regardless, you probably won't feel much difference between 7" and 8" wide rims.
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Quote from "BlueJ"
Regardless, you probably won't feel much difference between 7" and 8" wide rims.
i'd have to agree with much of the above info - aside from this part. i had my 31"s on stock wheels (first tj) and then went to 8" wide aluminums with just a slightly smaller backspacing. there was a day/night difference in handling on the road. can't speak for offroad capabilities since that tj didn't see much action on the trails. but on the road it was 10 times more rocksolid handling with the 1" wider wheels. fwiw.
chris -
shady,
don't get me wrong...the 31" tires will fit fine on the 7" wide wheels. but if given the choice i'd easily choose the 8" wide ones.
chris -
Maaaaaaaaah!!!!!! Seeeeeee!!!!! I told you to get 31's copper!!! You will be fine with the 15x7, may rub a little at full lock. My 31x11.00 swampers were on my 15x7's on the CJ before and were fine. You can probably find someone selling the TJ Canyon 15x8's around.
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I had 31 10.50 on my stock rims 98 TJ and at full left or right turns they rubbed like crazy. just my 2 cents.
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I'm currently running 31's on stock tj steel rims and have also had some tire rub at full steer lock left & right on the trail have had no issues with clearance problems
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I put 31's on my stock Grizzlies. To prevent rubbing, I put wheel spacers on to give my Jeep's wheels a wider stance
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31x10.50 on stock wheels with 1" body lift only rub is at full lock and if I'm driving and have to turn the wheel that hard I've got other much more serious problems than rub.
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To prevent rubbing at full lock, just add a couple washers under the steering stop bolts.
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hssss does that jeep have any kind of lift?
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It has 1" body lift and a modified MORE shackle reverse which moves the front axle forward and down 1". Just havn't gotten round to turning the stop bolts.
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That style of wheel is at best 15x7 if not 6 or 6.5, I don't have one broken down to measure. The handling is just fine. The rule of thumb is +- 1" of the tread width for best handling. If you are going to off road then you want a narrower rim so the tire protects the rim. The taller your sidewall the worse the handling or turn response. I'm building a crawler/dd using a Bronco as base the tires going on it are 35x12.50x16 they are mounted on 16x8 and fit just right the actual tred width is 10".
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