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Old 06-12-2019, 06:50 PM
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Newb Question: Typical Tire Upgrade Necessities

Howdy,

Total wrangler/car mods newb here hoping to get some input on lifting/spacing/tire rubbing. I just bought a new 2018 JLU Sahara. It's got the 18" rims with stock tires and I'm hoping to upgrade to some possibly larger/more aggressive all terrain tires.

I live in a heavy snow area so I'm trying to find some tires that would be good for that and the summer time on mild trails/city commute life.

I don't know anything about spacing or lifting, but came across this thread which seeks/gives options for tires that won't rub and don't require a lift or spacing.

I guess my question is, is lifting typically necessary? How much does a lift kit/spacing usually cost? Where you you get it done (will not be doing myself)? Is it worth it to have done, or something more heavy enthusiast based? How do you recalibrate the speedometer to accommodate for bigger tire size?

Am I smart to be trying to find a no rub option without doing lifting or spacing, or is that wishful thinking/turning a blind eye to a better option?

Would really appreciate any and all thoughts.

Thanks!

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Old 06-15-2019, 06:15 AM   #2
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I have the same vehicle. I installed 275/70 r18 Falken Wildpeak A/T3W's on the stock wheels. They are one of the best snow rated tires around, super quiet on the highway and they look fantastic.

No lift, no spacers, no anything.



Sent from my SM-G935V using Tapatalk
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Old 06-15-2019, 12:24 PM   #3
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Old 06-19-2019, 11:23 PM   #4
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Personal favorite is the BFG KO2's. They have the "new" snow rating with no mods from the original design as I understand it. I ran a used set for 2 seasons and they ran great in the winter. I ran the OEM Goodyear MTA's in the summer simply because the rim was a different size, until finally swapping to the BFG KM2's when I moved out of the mountains, to the mud.

My new '19 JLU Rubi came with 32" KO2's stock, and there is a high probability I will wear them out before upgrading to 33's. IMHO there is simply not a better 4 season tire than the KO2's
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Old 06-22-2019, 09:30 AM   #5
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JLU Rubicon should come stock with 33s (LT285/70R17). The axles are 2" wider than those on the Sahara or Sport and the fenders are higher. You should be able to go to 35s without modifications although they might rub a bit at full steering lock and if you go off road you may need a mile lift to fit 35s.

The JK/JKU Rubicon came with 32s (LT255/75R17), but every window sticker I have looked at on a JL/JLU Rubicon shows the 33s on the window sticker.
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Old 06-23-2019, 06:00 PM   #6
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For hi-way snow you want snow traction tires with siping. Better yet a winter only set with studs. Stay focused on that and you will run circles around most on packed snow and ice roadways. Wider and taller tires aren't the way. I lived in snow and ice country for 30 + yrs.(why I retired to SoCal haha) and a dedicated set of winter wheels and tires was the best option.
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Old 06-28-2019, 07:46 PM
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Originally Posted by MTBJEEP View Post
I have the same vehicle. I installed 275/70 r18 Falken Wildpeak A/T3W's on the stock wheels. They are one of the best snow rated tires around, super quiet on the highway and they look fantastic.

No lift, no spacers, no anything.



Sent from my SM-G935V using Tapatalk
Thanks for the input! They Look awesome. Have been debating between the K02's and Falkens. My only concern has been that with 18" rims you have to go Load E vs. Load C. Have you noticed much louder/rougher riding compared to the stock tires? I do a fair amount of longer highway driving.
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Old 06-28-2019, 07:48 PM
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Originally Posted by Jetpilot86 View Post
Personal favorite is the BFG KO2's. They have the "new" snow rating with no mods from the original design as I understand it. I ran a used set for 2 seasons and they ran great in the winter. I ran the OEM Goodyear MTA's in the summer simply because the rim was a different size, until finally swapping to the BFG KM2's when I moved out of the mountains, to the mud.

My new '19 JLU Rubi came with 32" KO2's stock, and there is a high probability I will wear them out before upgrading to 33's. IMHO there is simply not a better 4 season tire than the KO2's
Thanks for the input. Have only heard great things about the BFG K02s. My only concern is that I'll be keeping the 18" stock rims and with 18's you're forced into Load E instead of Load C. I've heard k02's do a pretty good job of counteracting load noise/rough ride and are pretty good for highway. Would you agree?
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Old 06-28-2019, 07:53 PM
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Originally Posted by MTBJEEP View Post
I have the same vehicle. I installed 275/70 r18 Falken Wildpeak A/T3W's on the stock wheels. They are one of the best snow rated tires around, super quiet on the highway and they look fantastic.

No lift, no spacers, no anything.



Sent from my SM-G935V using Tapatalk
Also^, my dealer said I'd need to install a programmer to adjust the speedometer to exact reading when going to 70r size... did you install this/find it necessary?
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Old 06-29-2019, 10:30 AM   #10
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Quote:
Originally Posted by Stormylake17 View Post
Thanks for the input. Have only heard great things about the BFG K02s. My only concern is that I'll be keeping the 18" stock rims and with 18's you're forced into Load E instead of Load C. I've heard k02's do a pretty good job of counteracting load noise/rough ride and are pretty good for highway. Would you agree?
Never had an issue with KO2 road noise, but I'm sure they are louder than street tires. Even my BFG KM2's for mud were not bad considering the near paddle like tire profile. The Goodyear MT/A's I had stock on my '06 were mind numbing for noise, stay away from them.

If you are going to do all season on one set of tires, KO2's are the way to go.

I don't notice a rough ride on a Jeep, it's a Jeep and rough ride is an endearing characteristic

Cheers,
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Old 07-02-2019, 02:26 PM
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Installed 275/70R18 BFG K02's on my 2018 JLUS's stock 18"x7.5" rims. No rub, no spacing, no lift. Fit great. Anything in 18" rims is forced into load type E as a LT tire is required (Lite Truck) but the K02's don't feel much different from the stock duelers and they look awesome. No difference in noise, bit bouncier ride which is fine. Only issue is the speedometer is slightly off and could be recalibrated but dealers are saying that's like $300 so we'll see on that one. I've attached a chart to show the speedometer difference when upgrading to this size tire from stock. Thanks to everyone for helping a newb out! Much appreciated.Click image for larger version

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Old 07-02-2019, 04:17 PM   #12
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Quote:
Originally Posted by Stormylake17 View Post
Thanks for the input! They Look awesome. Have been debating between the K02's and Falkens. My only concern has been that with 18" rims you have to go Load E vs. Load C. Have you noticed much louder/rougher riding compared to the stock tires? I do a fair amount of longer highway driving.
Sorry for the slow response. I emailed Falken and they told me 40 pounds of air pressure would mimic the load rating of the stock tire as the E rated max is 80 pounds. I'm sure you could go quite a bit lower but I like to bounce around a bit coming from a 1-ton pickup.

No need to recalibrate for 33" tires. The difference is pretty inconsequential. That being said I'm neither a gear head nor type A so I dont mind things being a little "off"

I do a ton of highway driving and I couldn't be happier with the handling, noise etc. A great tire.

Sent from my SM-G935V using Tapatalk
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Old Yesterday, 06:19 AM   #13
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Falken makes a 255/70R18 Wildpeak ATW3 direct replacement...It is an SL tire same as the Bridgestone Dueler HT that came on the Jeep. 32.1" no Speedo adjustment needed. Rides the same. Unless you are doing extreme rock crawling , they are perfect for your needs. Snow rated. Wife has them on her Colorado Z71. Ordered them for my Sahara.
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