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Modified JK Tech Tech related bulletin board forum regarding subjects such as suspension, tires & wheels, steering, bumpers, skid plates, drive train, cages, on-board air and other useful modifications that will help improve the performance and protection of your Jeep JK Wrangler (Rubicon, Sahara, Unlimited and X) on the trail.

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35's or 37's ....

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Old 06-18-2013, 07:41 AM
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Appreciate the input ... thank you

Originally Posted by Sirtreysif
IMO 37's and not wheeling is way expensive. A set of 35s on 15s will be soo much less than the work needed to run 37s.

Do your homework; and decide on what suits you; keep in mind if you never plan on off road that the all-terrain tires are cheaper than the mud/snow tires.

Hope this helps
Originally Posted by BigSteve
Snow in the winter? We're in southern California what snow?! But in all seriousness if you want to go to 37's be prepared to spend some pretty decent cash to support it. Being as you are not wheeling it you should be able to get away with doing it a little cheaper but it's still not going to be cheap. If you went with a 2 inch budget boost and cut the flares you could put 37's on cheaper. Once you get to 3 inches of lift you want to start thinking about doing at least the front driveshaft. The other big thing to consider is what gear ratio you have in the axles. Being as you have a Sport you may have a 3.21 axle ratio. If that's the case then you will definitely want to regear if you go 37's otherwise it will be a dog. With 35's you will still probably want to regear but it may be tolerable to you. There is definitely more to it than lift, wheels, tires....done.
Old 06-18-2013, 07:42 AM
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100% going to go with a 20x10.0 -44 offset wheel and the more I research the more I'm leaning towards a 35"

Originally Posted by karls
The price difference is due to wheel diameter. 37's will be cheaper on 17's but that's because the market is currently all over 17's. The thing used to be 15's (and still is with 44" swampers!) but we don't run tall and fat swampers here.

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Old 06-18-2013, 07:49 AM
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I'm also going to go with the Bushwacker pocket fenders ...

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Old 06-18-2013, 08:05 AM
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I'll play devil's advocate here....and will probably be considered an ass for doing so, but why the hell would you even consider 37's for a pure street Jeep? And on 20's at that? Just for show? Sounds like you have more money than sense, my friend.

Even with 35's, on 20" wheels, you'll want to regear to account for the loss in acceleration and drivability you're going to experience. Big tires are heavy, as are big wheels. Put the two together and you're adding a lot of unsprung weight to each corner and even with the Pentastar, it's going to suck until you regear your axles. So plan for that cost, as well. I'd say 4.88's would suffice and get you back close to stock when your planned wheels & tires. 4.88's paired with the 3.6L engine seem to be comparable to 5.13's paired with the 3.8L, which is what I'm running with 37's and 17x8 wheels. And it still ahs a hard time getting out of its own way. While you're at it, plan on another $700 to account for a Diablo Trinity tuner, as that's still the only one available for 2011+ Wranglers that I'm aware of.

If you're going to do it, find wheels as light weight as you can. Also, one of the best tires you'll find, and it's very capable off-road as well, is the Falken WildPeak A/T. Good for street and trail. Not so much for mud, but even decent on rocks should you ever decide you want to give that a whirl. Honestly, you'd be better off going with nothing larger than an 18" wheel to save some weight and coin. Besides.....Jeeps just don't look right on 20" wheels.

But it's your rig and your money....do what makes ya' happy.
Old 06-18-2013, 08:28 AM
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20" srt8 wheels with duratracs for the win!

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Old 06-18-2013, 08:48 AM
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Yellowfin, what does he need the Diablo tuner for? If it is for correcting gear ratio and tire size, he can use a Procal. Significantly cheaper than the Diablo and it works just fine.
Old 06-18-2013, 08:51 AM
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Originally Posted by BigSteve
Yellowfin, what does he need the Diablo tuner for? If it is for correcting gear ratio and tire size, he can use a Procal. Significantly cheaper than the Diablo and it works just fine.
Or if you have a manual transmission, could just say screw the tuner/ procal all together like i did
Old 06-18-2013, 08:55 AM
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Originally Posted by BigSteve
Yellowfin, what does he need the Diablo tuner for? If it is for correcting gear ratio and tire size, he can use a Procal. Significantly cheaper than the Diablo and it works just fine.
Yeah, for the speedo & gear ratio corrections, but also to help get back some of the performance lost by adding larger wheels & tires. To m knowledge, no one else makes an actual tuner for the 2011+ that will allow for performance tuning. Diablo is the only one that I'm aware of.
Old 06-18-2013, 09:00 AM
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Originally Posted by Yellowfin
Yeah, for the speedo & gear ratio corrections, but also to help get back some of the performance lost by adding larger wheels & tires. To m knowledge, no one else makes an actual tuner for the 2011+ that will allow for performance tuning. Diablo is the only one that I'm aware of.
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Old 06-18-2013, 09:01 AM
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sorry, for SOME reason that popped into my head and i had to share kinda dumb lol



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