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Old 11-12-2012, 10:54 AM   #391
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I think I know the answer to this already, but I want to make sure and clarify a few things.

I'm looking at getting V-Tec Raptor rims (17X9 5-127 25MTB) and 285/70 R17 Duratecs

I think I would need spacers, correct? 25/25.4=.984+((9+1)/2)=5.98

So first question, Is my calculation correct?

Second, how would spacers effect my Jeep, are they bad for wheel bearings? would they make my wheels stick out super far?

Third, would adding a teraflex leveling kit make a difference?

Thanks in advance

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Old 11-14-2012, 07:53 PM   #392
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First off, thank you for the initial information and for all who have contributed to this thread. It's a fantastic source of information. Now I've gone through this numerous times and I think I've come up with a setup that works with the stock 17" wheels on my 2012 JKU. If you don't mind, could you more experienced members take a look and let me know what you think of this setup? Pros / Cons, am I way off on something? forgetting something big?

Wheels: 2012 JKU OEM Stock. 17" Alloys
Tires:285/70/17 (Not sure on brand yet, but budgeting $1300 here)
Wheel Spacers: Spidertrax Wheel Spacer Kit: $99
Lift: TeraFlex 2.5" Lift Kit w/ Shock Adapters: $486
Quick Disconnects: JKS Manu Quicker Disconnects: $160
Bumper Caps: Rough Country JK Bump Caps: $59

Any wheel recommendations? Need a bigger budget? lol.

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Old 11-15-2012, 06:36 AM   #393
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Quote:
Originally Posted by manamal
First off, thank you for the initial information and for all who have contributed to this thread. It's a fantastic source of information. Now I've gone through this numerous times and I think I've come up with a setup that works with the stock 17" wheels on my 2012 JKU. If you don't mind, could you more experienced members take a look and let me know what you think of this setup? Pros / Cons, am I way off on something? forgetting something big?

Wheels: 2012 JKU OEM Stock. 17" Alloys
Tires:285/70/17 (Not sure on brand yet, but budgeting $1300 here)
Wheel Spacers: Spidertrax Wheel Spacer Kit: $99
Lift: TeraFlex 2.5" Lift Kit w/ Shock Adapters: $486
Quick Disconnects: JKS Manu Quicker Disconnects: $160
Bumper Caps: Rough Country JK Bump Caps: $59

Any wheel recommendations? Need a bigger budget? lol.
Looks about right. One note, I think the $99 for the wheel spacers would be x2.

Shop around on the lift kit and the jks disconnects. I got the quicker disconnects on Amazon for $145 and free shipping. Check out http://4wheelonline.com/jeep/ They seem to have the best prices I've been able to find on lifts.
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Old 11-15-2012, 07:24 AM   #394
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Originally Posted by mickeymeanie View Post
Looks about right. One note, I think the $99 for the wheel spacers would be x2.

Shop around on the lift kit and the jks disconnects. I got the quicker disconnects on Amazon for $145 and free shipping. Check out Jeep Accessories and Jeep Parts LOWEST PRICES on Jeep Accessories and Jeep Parts They seem to have the best prices I've been able to find on lifts.

Yes, i messed up the price for the spacers and only put 2. Good catch.

But all in all the setup looks like there will be no chance of rubbing or hitting within the wheel well, right?

Also, any recomendations on tires in this size? Someone recommended Cooper Discovery All Terrain Tires... but they dont look all that bad ass! lol. Anything that is good for on/off road that looks hard?
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Old 11-15-2012, 08:14 AM   #395
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The Goodyear duratracs look sweet, are fairly lightweight, and many people like them for in and of road. If you like coopers, you could also check out the STT. (Or maybe is was SST) its very aggressive looking, but I haven't been able to find any reviews in it yet, though I haven't looked hard either.
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Old 11-15-2012, 06:17 PM   #396
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Anyone have any thoughts

i've been thinking about these: any thoughts?
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Old 11-15-2012, 06:17 PM   #397
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damn, forgot how to attached a pic... gimme a few
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Old 11-15-2012, 06:19 PM   #398
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Click image for larger version

Name:	Radial F-C II Tire.jpg
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Size:	47.8 KB
ID:	178723

what about these??
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Old 11-16-2012, 08:35 AM   #399
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Thanks for the great info

Hello all, I'm a newb from Boston Ma. With my first post I wanted to thank all the Jeep nuts out there for all the great info. And a specific shout out to 4fit from N.C. for the post about wheels and backspacing, it was awesome. I recently bought my first jeep and had to update the wheels and tires, couldnt have figured it all out without that info. It looks even better than I thought it would. Many more updates to come and this is the place to get all the answers, thanks again to all.
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Old 11-18-2012, 05:15 PM   #400
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I am so grateful for this thread. Thx to the OP for making it, and everyone else contributing. I think I got it now, in my understanding it boils down to this:

1) if on stock rims, 33" X 10" are the largest you can get.

2) if using aftermarket rims, make sure your backspacing is 4.5 to 5", then you can use up to 12.5" width tires, and 33" is still maximum diameter.

Anything bigger, you gotta lift or use spacers. Does this sound about right? Do i have this right?
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Old 11-18-2012, 06:15 PM   #401
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Stock JK's can fit 35's on stock wheels with a 1.5" spacer. I know cuz I've done it.... Would I take it off road like that, no simply because you're going to rip your fenders off with the tire... unless you cut your fenders.
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Old 11-18-2012, 08:50 PM   #402
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Quote:
Originally Posted by Zerg
I am so grateful for this thread. Thx to the OP for making it, and everyone else contributing. I think I got it now, in my understanding it boils down to this:

1) if on stock rims, 33" X 10" are the largest you can get.

2) if using aftermarket rims, make sure your backspacing is 4.5 to 5", then you can use up to 12.5" width tires, and 33" is still maximum diameter.

Anything bigger, you gotta lift or use spacers. Does this sound about right? Do i have this right?
This is a generally accurate, *conservative* assessment--this is what you would advise somebody.

In reality, you can usually push the margins a touch farther.

11" wide tires will usually work with little to no rubbing, though, again, there may be a little.

You can actually fit 35" tires on a stock suspension. But the clearance from your fender flares will be very, very right. Offroading would cause them to rub the flares very quickly.

My only real correction would be that backspacing on aftermarket wheels should be 4.5" or less, not more. My black rocks for example have 4" of backspacing.

So that's why the general advice is 33x10 is your biggest tire for a stock JK with stock wheels. That's as big as you can tell someone to get and still be very confident that they will not rub under any normal circumstance. But if they're willing to tolerate a larger risk of some tire contact, you can squeak them into a larger size.
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Old 11-19-2012, 11:58 AM   #403
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Will a 16x8 rim with 5" backspace and 285/75R16's rub on road or with light off road? I know 4.5" is ideal but I don't know where to draw the line. Would I need spacers?
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Old 11-19-2012, 03:43 PM   #404
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Originally Posted by Corydotcom16
Will a 16x8 rim with 5" backspace and 285/75R16's rub on road or with light off road? I know 4.5" is ideal but I don't know where to draw the line. Would I need spacers?
Never mind... I waded through and found my answer!! 4.25" it is!
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Old 11-20-2012, 01:03 AM   #405
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Quote:
Originally Posted by MTH

My only real correction would be that backspacing on aftermarket wheels should be 4.5" or less, not more. My black rocks for example have 4" of backspacing.
Ah, that was the one point i was worried about. I was really hoping i could get away with 5" backspacing because the rims i want to get have 5" backspacing. Now that's 1.25" less than stock rims. I figured that with 12.5" width tires, which are 2.5" wider than the recommended 10 inches, that xtra 1.25" clearance would cover the difference in tire width. I'm assuming the xtra 2.5" width difference on the tire is evenly distributed so that its 1.25" fatter on the outside and 1.25" fatter on the inside.

Crikey i don't know if what i just wrote makes any sense to me, let alone anyone else haha.
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Old 11-20-2012, 12:34 PM   #406
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I just drank the koolaid.
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Old 11-20-2012, 01:48 PM   #407
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Quote:
Originally Posted by Toole View Post
Stock JK's can fit 35's on stock wheels with a 1.5" spacer. I know cuz I've done it.... Would I take it off road like that, no simply because you're going to rip your fenders off with the tire... unless you cut your fenders.
Doesn't actually rip them off... breaks most of the clips, separates the inner and outers form each other some, and shoves the front up onto your hood latches...

They stay on the jeep though

33" tires on stock CAN hit the fenders pretty solidly if you wheel the **** out of it
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Old 11-20-2012, 01:54 PM   #408
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Originally Posted by Zerg View Post
Ah, that was the one point i was worried about. I was really hoping i could get away with 5" backspacing because the rims i want to get have 5" backspacing. Now that's 1.25" less than stock rims. I figured that with 12.5" width tires, which are 2.5" wider than the recommended 10 inches, that xtra 1.25" clearance would cover the difference in tire width. I'm assuming the xtra 2.5" width difference on the tire is evenly distributed so that its 1.25" fatter on the outside and 1.25" fatter on the inside.

Crikey i don't know if what i just wrote makes any sense to me, let alone anyone else haha.
5" might work. Again, you're really playing at the margins. Whether 5" works or not might be very tire specific--i.e., not ALL 35x12.5 tires are EXACTLY 35x12.5. I believe AEV's wheels have 4.5" of backspacing, so I think that's where folks get the notion that 4.5" is somehow "ideal."
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Old 11-21-2012, 08:43 PM   #409
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Quote:
Originally Posted by MTH

5" might work. Again, you're really playing at the margins. Whether 5" works or not might be very tire specific--i.e., not ALL 35x12.5 tires are EXACTLY 35x12.5. I believe AEV's wheels have 4.5" of backspacing, so I think that's where folks get the notion that 4.5" is somehow "ideal."
Thx for replying MTH. I'm gonna go with 33 X 12.5 tires. Waffling on the rims, tho. The 5" backspacing makes them risky, but i really love them. They're the cepeck Torque rims in black. Know anybody who has them? Anybody know?

Edit: on second thought i could just go with 33x11 tires, then those rims would be fine. But it would be nice to have the meatier 12.5...
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Old 11-21-2012, 08:58 PM   #410
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Quote:
Originally Posted by Zerg

Thx for replying MTH. I'm gonna go with 33 X 12.5 tires. Waffling on the rims, tho. The 5" backspacing makes them risky, but i really love them. They're the cepeck Torque rims in black. Know anybody who has them? Anybody know?
I see those a lot--I bet they fit.

Try running a search here on the forum or googling "cepek torque JK"--I bet you'll see a lot of evidence they'll work just fine.
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Old 11-23-2012, 01:07 PM   #411
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Hi,
Thank you for this usefull post, am new JEEP Wrangler 4 doors owner, I did a 2" body lift and install 1.5" spacers, so, what is the largest 10" width wheels and tyres I can use?

Thank you in advance for help
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Old 11-23-2012, 05:44 PM   #412
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With the spacers you can fit a 35x12.5 under there
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Old 11-23-2012, 07:51 PM   #413
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Originally Posted by MTH View Post
5" might work. Again, you're really playing at the margins. Whether 5" works or not might be very tire specific--i.e., not ALL 35x12.5 tires are EXACTLY 35x12.5. I believe AEV's wheels have 4.5" of backspacing, so I think that's where folks get the notion that 4.5" is somehow "ideal."
I think AEV wheels have over 5" of backspacing according to thier web site
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Old 11-25-2012, 11:55 AM   #414
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Awesome Info!

I will be reading through entire thread before running ascenarioi by you before I drop $ on new wheels/tires. Thanks again!
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Old 11-26-2012, 09:20 PM   #415
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Any tire larger than 11” in width, you are almost guaranteed to have to do one of the above mentioned mods. In fact, if you go too much wider than the 11” tire on stock wheels, you stand a good chance of making contact with your rear swaybar end link. If that is the case, wheel spacers can correct this issue. Common sizes are 295/70/17 (33x11.6), 305/60/17 (33x12), 305/70/16 (33x12), 295/65/18 (33x11.6).
What would be considered "too much"? I was thinking about putting on a set of 295/65r18 duratracs on my stock 18 wheel. Will washers to the steering stops suffice? I do not want to run spacers so if this will be an issue I will look into smaller tires as I would like to keep the stock wheels. Any help is appreciated.
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Old 11-27-2012, 09:03 AM   #416
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youll want spacers with that set up.

id sell the 18s as a set and drop down to a 16in wheel.
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Old 11-28-2012, 12:15 PM   #417
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Order has been placed, for better or worse here's what's on the way for my Jeep:

Cepek Torque Rim in Black
17" diameter, 5" backspacing

ProComp Xtreme A/T LT
305/65R17
32.8"x12.2"

No lifters or spacers, they're going on my stock JK. I'm gonna post a pic once I have them on, provided that they do fit! Fingers crossed, but i think they're gonna be fine...
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Old 11-28-2012, 07:12 PM   #418
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I am picking up my 2013 Jeep Wrangler Unlimited Rubicon in a few days. After lots of reading and research, for a first step I am considering the following and would like to know if there are any reasons why this would not work:

Keep stock Rubicon wheels (for now)
Replace BFG MT KM with 285/70R17 Goodyear Duratracs
Install 1.5" Spidertrax Spacers to avoid rubbing
No lift (for now)

Thanks!
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Old 11-28-2012, 08:42 PM   #419
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Quote:
Originally Posted by diesel_dad
I am picking up my 2013 Jeep Wrangler Unlimited Rubicon in a few days. After lots of reading and research, for a first step I am considering the following and would like to know if there are any reasons why this would not work:

Keep stock Rubicon wheels (for now)
Replace BFG MT KM with 285/70R17 Goodyear Duratracs
Install 1.5" Spidertrax Spacers to avoid rubbing
No lift (for now)

Thanks!
This is answered right in the first post, where it says:

Quote:
Originally Posted by 4fit
On Stock Wheels

The largest tire you can fit without a chance of problems on road is a 33x10 tire (also called a “pizza cutter”). An example is the 255/80/17 BFG KM2. Because this tire is the same width as most stock JK tires, there is no issue on road, despite the larger diameter. You can run this size without issue.

Now, let’s consider some tires that could potentially cause slight issues on road; the 33x11s. The common sizes of these would be 285/75/16, 285/70/17, and 275/70/18.
So yes, 285/70/17 will fit. You may not even need the SpiderTrax spacers, but if you get them, there will certainly be no rubbing on turns. You will rub your fender flares if you flex your suspension offroad until you get a lift.
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Old 11-28-2012, 09:20 PM   #420
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hey manamal, have a 2013 jku w/ fierce attitude m/t 35x12.50 r 17 Lt. w/ motorsport ultra wheels, if this helps on a 3 inch lift

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