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Old 10-10-2017, 12:01 PM
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Red face Care to help out a clueless female pick out tires? 2014 JKU sahara?

Hi guys, I could use some advice on tires. I'm sorry for the total newbie questions, but I know very little about tires other than they look cool bigger

I just got a 2014 JKU sahara with 18" black wheels (that I think look great). The tires on them are highway tires, and since I like to offroad in sand and mud, I'd like to upgrade them to all terrain? tires? With the beefy tread and such?

What I would like is bigger tires to go with a 2.5" lift I'm having installed, beefy tires that can take the terrain off-road better without sacrificing too much of the on-road comfort. We plan on driving CA to CO in it in the snow this New Years, so ideally, tires that are good for both. I used to have a 2006 TJ with the same lift and I think like 30" tires? Not as big as the 35's that seem to be the most common. But that jeep (2 door) was very very squirrely feeling to me on the road, but off road those tires were awesome. This new 2014 4 door is night and day different. I love driving the new one. I don't want to make the new one drive kinda scary like the old one did on the highway.

Gosh I'm sorry I'm so long-winded. Next question, can I keep the 18" wheels, or should I just replace those, too? I like the look of them, but are those wheels big enough to accommodate a bigger tire? What would be the biggest tire I could get on that size wheel, and do you think smallish wheels and biggish tires looks stupid? lol. These are important questions. I forgot to say the Jeep has to look cool at all times. Not as manly or cool-looking as
you big Jeep dudes who do crazy rock-crawling and winching each other out of scary spots. But cool like a badass girl owns it? Hehehe. Yeah?

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Old 10-10-2017, 12:30 PM   #2
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You can fit 35's just fine on your 2.5 lift and 18" tires, however I do suggest regearing your jeep What part of CA do you live in?

Tires - well I prefer all terrains due to longevity, and less noise. I have experience with Firestone destinations, Toyo AT2, and my current BFG KO2's. I have 40k on my current KO2's and looks like they will go another 40k. I do prefer the Toyo AT2 just as personal preference (I like the tread pattern and quietness).

The only thing that you will need if planning to keep your oem wheels are wheel spacers, and perhaps a rear tire carrier if planning to get a matching spare.

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Old 10-11-2017, 01:07 AM
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What do you mean by regear the Jeep? Thanks for the input ??
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Old 10-11-2017, 01:09 AM
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Ventura/LA county. This was a happy day today
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Old 10-16-2017, 07:32 PM
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Will these tires be a good fit without regearing the Jeep or changing the wheels?
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Old 10-18-2017, 09:29 AM   #6
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Those tires would be good. Lots of fans of that Terra Grappler on here.

You mentioned mud... if you are in mud often and enthusiastically, you will probably want a "hybrid" AT tire such as the BF Goodrich KO2, Goodyear Duratrac, Nitto Ridge Grappler, Mickey Thompson Baja ATZ P3, Toyo Open Country RT, or Cooper Discoverer S/T Maxx. Any one of those should be a competent choice.

Since it looks like you're in the desert though, I'm guessing mud is just a casual flirtation, so a full AT should still do you just fine and ride well on the highway. In this range, your best bets I would say are the Cooper Discoverer AT3, Nitto Terra Grappler, or Toyo Open Country AT II. Again, probably wouldn't be disappointed with either of them.

That being said, I have Duratracs and they have not let me down in Arizona, So Cal, and Moab in gravel, sand, hardpack, granite, slick rock. Been in a little mud and got through fine.

I will also add that I will probably be getting the Discoverer AT3s next to try and improve the highway behavior over the Duratracs and because of this video...
https://youtu.be/9Kz8mmLkeks
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Old 10-18-2017, 09:46 AM   #7
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What do you mean by regear the Jeep? Thanks for the input ??
The ring and pinion gears in your axles have different numbers of teeth. When you see someone talk about a gear ration (3.21, 3.73, 4.10, etc), what they're really saying is that the ring has that many teeth for every one tooth on the pinion. A lower gear ratio (which is actually numerically higher) provides more torque at low speed and therefore takes less power to move your vehicle's weight.

Here is a quick video that may help explain.

http://www.youtube.com/watch?v=49DxlXs8tyk

When someone talks about re-gearing, they are talking about replacing the gears in your front and rear axle with sets that have a lower gear ratio to compensate for the larger tires you may be adding or higher amount of weight you may be pulling.

I hope that helps!

EDIT: A couple of other things I'd like to mention.

You mentioned you have a JK Sahara. That means your stock tires are 32". A 33" tire won't give you much more height, but can still give you a much more aggressive look if you choose the right one. Goodyear Duratracs are a great tire (I run them and have been happy with them) and you can get them at 33" for your wheel size easily.

You can check your gear ratio by looking at your build sheet. You can get your sheet by going to this site, clicking "Equipment Listing" in the left navigation menu, and entering your VIN. https://www.jeep.com/webselfservice/jeep/index.html Your VIN can be found on a little metal plate on your driver side dash if you don't know it. Your gear ratio will either be 3.21 or 3.73 since you have a Sahara.

Lastly, be aware that changing your tire size will throw off your speedometer and odometer a bit. A tuner like a Procal or Flashcal will allow you to easily tell your Jeep's computer about the new tire size and solve that for you.
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Old 10-18-2017, 10:08 AM   #8
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Will these tires be a good fit without regearing the Jeep or changing the wheels?
Your stock tires are 255/70R18, so a 275/70R18 will be 20mm (about .27") wider. You may find them rubbing on the plastic shield (air dam) under your front bumper when you turn them all the way. You can easily trim that with a dremel or strong gardening sheers. You'll also gain roughly 1" of tire diameter (.5" of height). As long as you don't feel sluggish right now, you'll probably be okay with that tire size without re-gearing.
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Old 10-18-2017, 02:43 PM   #9
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One thing I would mention is how much driving in snow do you do? There is a "severe weather" rating. It's a snowflake in a mountain symbol. This limits your choices, but around here they do make a difference in the wintertime. Some places like up in the Vail/Aspen area of CO require chains or these rated tires.

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Old 10-18-2017, 03:11 PM   #10
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With a spacer kit and 1.5 wheel spacers, you can go to a 295-70-18 on stock rims. This is her Jeep with a Teraflex kit. I also had to trim the air dam a little to clear. Those are General Grabber X3's but there are a lot of choices in that size.
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Old 10-19-2017, 01:19 AM
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Omg! Thanks, you guys! That was incredibly helpful. I almost got sold on a set of wheels I really didn?t want for $1600. The salesman almost had me convinced that putting a 10? wide tire on a 7.5? wide rim was a death sentence.

I listened to you guys! I ordered the Nitto terra grappler G2?s. They?re LT, so they?re E rated. I hope that doesn?t compromise the ride too much.then again it?s gonna look so damn good, who cares. It?s so nice ??

Thanks for posting the pics of the blue Jeep with those awesome tires, too! That looks just like mine and makes me so excited to see it with the new tires ??

I got the lift done and the front windows tinted. I love it. Like maybe more than the kids ?
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Old 10-19-2017, 03:19 AM   #12
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Old 10-19-2017, 02:30 PM   #13
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I love it. Like maybe more than the kids ?
There is no maybe.

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