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Old 01-11-2017, 09:19 AM   #1
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315's Stick Out

Hi guys.

I have a chance to get some 315/70/17 Duratracs at a great price.
I have searched but I can't find any pictures showing how much they would stick out past the fenders on stock Rubicon rims?
I can calculate it but a picture is so much better.
I already have 1.5" wheel spacers installed.
Wondering if anybody has any straight on front shots of 315/70/17 Duratracs mounted on Rubicon wheels with spacers?

Cheers
Paul
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Old 01-11-2017, 10:15 AM   #2
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They are about 12.5" wide. How wide are your tires now?

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Old 01-11-2017, 10:30 AM   #3
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This is how much 35x12.5s on stock rims with 1.5" spacers stick out





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Old 01-11-2017, 10:34 AM   #4
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OEM Willys wheels with 1.5 spacers.
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Old 01-11-2017, 11:34 AM   #5
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Right now I am running 275/70/18 on a 2" lift with wheel spacers. I believe the Duratracs will fit. I have Rubicon rims ready to go.
Aldo how much is that sticking out around 1.5"?
Also noticed the Canadian flag on your rig? Are you Canadian?

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Old 01-11-2017, 01:02 PM   #6
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On the left is a 315/70/17 Duratrac on factory Willys wheel and 1.75" spacer.

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Old 01-11-2017, 05:17 PM   #7
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Quote:
Originally Posted by paulyp View Post
Right now I am running 275/70/18 on a 2" lift with wheel spacers. I believe the Duratracs will fit. I have Rubicon rims ready to go.
Aldo how much is that sticking out around 1.5"?
Also noticed the Canadian flag on your rig? Are you Canadian?

Cheers
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315's about 2" wider than 275 so it will stick out about 1" farther. (same wheel, same spacer)
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Old 01-11-2017, 06:51 PM   #8
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Well,
This may or, may not help. These are 315 70 17s on American Racing Anson Off Road 17" x 8" x 4.25" back spaced rims. And, your looking at two different Mopar fender flares. One is a factory one and the other is the Mopar High Top flare. Picture one shows the drivers side with the new Mopar Hightop installed with the factory flare on the passenger side. Pic two is a perspective with both installed and Pic three is closer to what you're asking. Although it's with aftermarket rims with the 4.25" back spacing. Sorry I could't be of more help.
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Old 01-11-2017, 08:04 PM   #9
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315/70/17 on 17x9 with 4.53 bs
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Old 01-12-2017, 07:00 AM   #10
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Thanks guys.
Looks like I will need to order some mud guards.
I think the 315's look really good on a 4 door.

Cheers
Paul
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Old 02-02-2017, 07:34 AM   #11
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Just a follow up. I haven't pulled the trigger on the 315's yet.
I think I have information overload reading all the posts on going to 315's like adding gussets or if I hit a pothole I will bend the C's or the housing etc.
The 315 duratracs are only 2.5lbs heavier each than my current 275/70/18 bfg's
I am worried about the mpg hit I will take as this is my DD.
I am getting combined 17mpg right now. I'm guessing that will drop to 15 maybe.
Added a picture of what I have right now. 315's would look so much better though.
Sorry for my rant.
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Old 02-02-2017, 08:55 AM   #12
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I don't think your gas mileage will take quite the hit that you are talking about. Sure seems like most posters failed to re-calibrate their speedometer/odometer.
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Old 02-02-2017, 10:02 AM   #13
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I agree, weights minimal, you're only going 1" taller. Actual MPG change won't be much. Visual change, yep with the width and height increase.
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Old 02-02-2017, 10:21 AM   #14
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I think my 315s on American Outlaw Buckshot rims stick out just a hair, barely at all with Buschwacker Flats.

I upgraded from stock to the 315s and saw very little if any fuel mileage change. I get High 17s, consistently run 75 highway. As for gussets etc, I havent felt any noticeable extra drag in starting nor stopping. Doesnt mean its not there, just means Im not worried about gussets etc.
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Old 02-02-2017, 10:33 AM   #15
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I don't know if these pics will help but they are Cooper Discoverer 315/75 R17's on stock Rubicon wheels with 1 1/2" spacers. They really don't stick out that far at all.
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Old 02-02-2017, 10:57 AM   #16
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Stock tires are 10.2". 1.5 + the 2..2 for the 12.5 is 3.7 / 2 for rim Center is 1.85 so with air tire pressure etc it would be safe to say 2" max
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Old 02-02-2017, 11:01 AM   #17
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Quote:
Originally Posted by paulyp View Post
Thanks guys.
Looks like I will need to order some mud guards.
I think the 315's look really good on a 4 door.

Cheers
Paul
They'll look great
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Old 02-02-2017, 01:51 PM   #18
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Originally Posted by JKURHR_mike View Post
315/70/17 on 17x9 with 4.53 bs
THREAD HIJACK...

Those are the C rated 315/70s, correct? If so, how are you linking them? And, if you've had a chance to drive on them with your Jeep loaded down (camping gear+people or whatever), how did they handle the load?
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Old 02-02-2017, 02:38 PM   #19
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Quote:
Originally Posted by mtnecho View Post
THREAD HIJACK...

Those are the C rated 315/70s, correct? If so, how are you linking them? And, if you've had a chance to drive on them with your Jeep loaded down (camping gear+people or whatever), how did they handle the load?


Correct. I'm liking them a lot. I don't realize any difference from my stock KO2s in regards to noise and ride comfort. Sorry, I can't speak to carrying any load other than passengers and when I had them put on I drove home on the highway with my 5 stock wheels and tires in the back and it handled fine. My installer mentioned that with such a big tire the C may roll more but I haven't noticed anything. I don't intend on trailering much so they fit my needs just fine. If you're talking about just loading up your jeep and not pulling a trailer I think you'll be fine but not sure they're the best choice if you're pulling a camper or something like that, I'd assume they'd wear faster than normal.


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Old 02-02-2017, 03:19 PM   #20
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Originally Posted by JKURHR_mike View Post
Correct. I'm liking them a lot. I don't realize any difference from my stock KO2s in regards to noise and ride comfort. Sorry, I can't speak to carrying any load other than passengers and when I had them put on I drove home on the highway with my 5 stock wheels and tires in the back and it handled fine. My installer mentioned that with such a big tire the C may roll more but I haven't noticed anything. I don't intend on trailering much so they fit my needs just fine. If you're talking about just loading up your jeep and not pulling a trailer I think you'll be fine but not sure they're the best choice if you're pulling a camper or something like that, I'd assume they'd wear faster than normal.


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Just wondering about loaded down with gear in the Jeep. My D rated duratracs have been aired down so many times I have to add air otherwise they get the weeble-wobbles. And I have a 2 door so the most I ever tow is a little camping trailer.

The price of the Cs, plus the thought of the ride on the daily commute, have me thinking really hard about 'em. I just worry about them not handling extra weight very well.

Thanks for your feedback!
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Old 02-02-2017, 03:36 PM   #21
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Originally Posted by mtnecho View Post
Just wondering about loaded down with gear in the Jeep. My D rated duratracs have been aired down so many times I have to add air otherwise they get the weeble-wobbles. And I have a 2 door so the most I ever tow is a little camping trailer.

The price of the Cs, plus the thought of the ride on the daily commute, have me thinking really hard about 'em. I just worry about them not handling extra weight very well.

Thanks for your feedback!

Anytime.. I run my JKU @ 30 psi and it doesn't feel wobbly but I have no experience with 2 doors.. For a daily driver the ride comfort is well worth it for me.



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Old 02-03-2017, 06:01 AM   #22
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My brain is telling me to mount 285/70/17 Duratracs on the Rubicon rims and be done with it but every time I see pictures of the 315/70/17's it looks so good. The problem with Jeeps is even subtle changes cost allot of money sometimes and I think most of us here have to run it by the CFO (wife) first. LOL

Cheers
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Old 02-03-2017, 02:32 PM   #23
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I have 305's and mine seem to stick out just as far as most in the pics. It's a good 1.5 - 2 inches past the fender.
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