33", 34" on stock wheels. NoOb. (Couldn't find the right answer anywhere).

P

Phil123

New member
Hello jeepsters.

I will need new summer tires, and so I started to think might as well upsize. I have looked at hundreds of posts to help me decide on the setup, but I didn't quite find something that fits with my plan, hoping someone out here can help.

First off, sadly I do not take my Jk out for off-roading, this is my daily driver. (maybe in the far future I will try it, but not with this setup I am aware.)

Here's my rig : 2010 JK 2-door Sahara fully stock with 18" stock wheels, and 255/70R18 Bridgestone Dueler A/T.

I am looking to buy 4 new Bridgestone Dueler A/T's on stock 18" wheels, to keep the look consistent with the 5th Dueler in the back (I am surprised I didn't find anyone else posting on forums who wanted to do this too, as a budget upgrade hence purchasing 4 vs 5 tires).

So, having that in mind, I am looking at either 275/70R18 OR 295/70R18 Bridgestone Dueler A/T since both seem to fit on the 18" stock wheels that are 7.5" wide.

CURRENTLY OWN : BSTONE DUELER A/T 255/70R18 6.5-8.5 32.1
BSTONE DUELER A/T REVO 3 LT275/70R18 7.0-8.5 33.2
BSTONE DUELER A/T REVO 3 LT295/70R18 7.5-10.0 34.3

Now, I have seen videos and read posts that say that I could easily upsize to the 175/70R18 with absolutely no issues and no rubbing, with NO LIFT. Which makes sense seeing that there is only a 1.1" difference.

But now I am thinking, well is 2.2" a big deal ? Could I upsize with the 295/70R18 with NO LIFT ?

Keep in mind I absolutely want to steer clear from Spacers, so that is not an option.

I have attached the full specs that I have found (FYI I couldn't find the correct wheelwell and fender spacing, so I went with the maximum this platform would permit) :

Do you guys have enough info on these 2 options to tell me if one of the two is not viable ?

(I have also contemplated on getting Rancho 2" lift with coils and RS5000, but living in a big city the only 4x4 mechanic is 40 minutes away -- and I am not really keen on staying there for an entire day while they install them... So I'm thinking about passing on these, unless you guys think I should ABSOLUTELY get them -- which are out of stock pretty much everywhere I looked).

(Re-gearing if necessary and speedometer calibration is the least of my worries at the moment.)

Thanks a lot !
 

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Pretty sure the final option on the right (the 34) will rub when you turn if you don't get spacers.
 
I have 33’s on stock 17’s and no lift. I rubbed my sway bar when I turned too sharp.
Then I put 1.5” Spidertrax spacers on and can go lock to lock without touching anything.


Sent from my iPhone using WAYALIFE
 
If you are at all handy with wrenches, putting a lift on a Jeep is pretty easy. Plus it’s not usually too hard to find other jeepers nearby that would be willing to help with the install. Try local Facebook groups or Jeep clubs. That would make your tire size options better.
 
If you are only going to buy 4 tires just buy the stock size. If you’re going to go up in size you need to buy 5 as you want the spare to be the same size in case you need to use it


Sent from my iPhone using WAYALIFE mobile app
 
☝️This☝️

If your spare is a different size, anc you need to use it, your traction and stability control will go berserk, thinking you are in a skid, and keep applying brakes to "straighten it out"

You could even end up in limp mode, stuck in second gear only and limited rpms, still with brakes coming on on their own. Makes for a tough way to go.

Match up the tires, please.
 
jdofmemi said:
☝️This☝️

If your spare is a different size, anc you need to use it, your traction and stability control will go berserk, thinking you are in a skid, and keep applying brakes to "straighten it out"

You could even end up in limp mode, stuck in second gear only and limited rpms, still with brakes coming on on their own. Makes for a tough way to go.

Match up the tires, please.
Click to expand...

I was under the impression I could you it for a short time, if need be, like a usual smaller-sized spare tire, and get a new tire once at the store ? Would it be that bad for short emergency distances ?

In any case, is there a way, with all the info I gathered, to know with 99% certainty if there would be rubbing with either 275s or 295s without spacers and with/without 2" lift ?
 
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Phil123 said:
I was under the impression I could use it for a short time, if need be, like a usual smaller-sized spare tire, and get a new tire once at the store ? Would it be that bad for short emergency distances ?
Click to expand...

Nope. These impressions would awaken the demons from the pit of the 7th layer of hell. Not good stuff. Just play by the rules.
 
Phil123 said:
I was under the impression I could you it for a short time, if need be, like a usual smaller-sized spare tire, and get a new tire once at the store ? Would it be that bad for short emergency distances ?

In any case, is there a way, with all the info I gathered, to know with 99% certainty if there would be rubbing with either 275s or 295s without spacers and with/without 2" lift ?
Click to expand...

You can get away with a different width but not different height


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2nd.gunman said:
You can get away with a different width but not different height


Sent from my iPhone using WAYALIFE mobile app
Click to expand...

True.

When I bought my Jeep, the spare had never been used, only 4 tire rotations and been done. When I had a flat, and used the spare the stability control was on edge. It was ok driving straight, but any bit of a corner set off the dash lights, and caused the Jeep to get whipped by the brakes kicking in.

Just the height difference from a new tire mixed with tires at over 50% tread caused this.

One more reason to keep matching tires, AND do 5 tire rotation, to keep them all even.
 
jdofmemi said:
True.

When I bought my Jeep, the spare had never been used, only 4 tire rotations and been done. When I had a flat, and used the spare the stability control was on edge. It was ok driving straight, but any bit of a corner set off the dash lights, and caused the Jeep to get whipped by the brakes kicking in.

Just the height difference from a new tire mixed with tires at over 50% tread caused this.

One more reason to keep matching tires, AND do 5 tire rotation, to keep them all even.
Click to expand...
Yep. Plus it keeps my OCD happy. It drives me crazy to see a jeep with a brand new spare and the other 4 have 4/32's on them. That spare is junk now and it'll be all rotted. Tires don't like to sit.

Sent from my SM-G973U using WAYALIFE mobile app
 
Well, first of all, I'd like to say I'm happy I sparked a 5th wheel debate lol I am going to get 5 tires and proceed with 5 tire rotations with these new ones.

So, after much thought (following all my previous much thought lol) I came to the conclusion that I may need to get a new set of wheels... Although the money I will spend on the wheels will have to be in place of a 2" lift... So what do you guys think about these two options (note, no spacers) :

A)
Get 275/70R18 Bridgestone Dueler @ 33.2" on stock 18" wheels

or

B)
Get 315/70/R17 Bridgestone Dueler @ 34.4" on :
American Racing AR1727973B - Baja - Satin Black - (17" X 9") - (5X127.00)
Universal Fit 17 in. / 9 in. / 5 x 127 / 83.1 / -12 mm
BOLT PATTERN (METRIC): 5x127.00
OFFSET: -12
BACKSPACING: 4.53
CENTERBORE: 83.06
LOAD RATING (LBS): 2500
CAP PART NO.: 1327000SB
LIP DEPTH: 1.21


Do you guys think options A and B can be done with no spacers and no rub ? Option B with no lift (I might get the 2" rancho lift in a couple of weeks if needed)? I mean, if option A doesn't rub, is it really worth 1.5k$ more to get option B with 1" more of tire ? (Reminder, this is a daily driver, not a 'every weekend offroader'... yet
 
Last edited:
Phil123 said:
Well, first of all, I'd like to say I'm happy I sparked a 5th wheel debate lol I am going to get 5 tires and proceed with 5 tire rotations with these new ones.

So, after much thought (following all my previous much thought lol) I came to the conclusion that I may need to get a new set of wheels... Although the money I will spend on the wheels will have to be in place of a 2" lift... So what do you guys think about these two options (note, no spacers) :

A)
Get 275/70R18 Bridgestone Dueler @ 33.2" on stock 18" wheels

or

B)
Get 315/70/R17 Bridgestone Dueler @ 34.4" on :
American Racing AR1727973B - Baja - Satin Black - (17" X 9") - (5X127.00)
Universal Fit 17 in. / 9 in. / 5 x 127 / 83.1 / -12 mm
BOLT PATTERN (METRIC): 5x127.00
OFFSET: -12
BACKSPACING: 4.53
CENTERBORE: 83.06
LOAD RATING (LBS): 2500
CAP PART NO.: 1327000SB
LIP DEPTH: 1.21


Do you guys think options A and B can be done with no spacers and no rub ? Option B with no lift (I might get the 2" rancho lift in a couple of weeks if needed)? I mean, if option A doesn't rub, is it really worth 1.5k$ more to get option B with 1" more of tire ? (Reminder, this is a daily driver, not a 'every weekend offroader'... yet
Click to expand...

Option B will require the lift and spacers. Already mentioned, 315 will make you jeep (Sahara 3.21 gearing?) a dog.

Why are you against spacers? Spidertrax makes a great product at a fraction of the cost of new wheels.
 
sipafz said:
4/32” [emoji848][emoji38][emoji6]
Click to expand...

From a math standpoint it's as wrong as it gets, but from a tire perspective, it is perfectly correct.

Tires are listed in 32nds, no matter what the "proper" fraction is.

Even when you go to giant OTR tires, it is the same. I have purchased loader tires that shipped with the stated tread depth of 128/32nds.


duktrx said:
I think he has a manual, so a re-gear isn't as critical. Heck I'm still rolling with 3.73 gears and 315/85r17.

Sent from my SM-G988U1 using WAYALIFE mobile app
Click to expand...

Yes, but there is a huge difference between 3.73 and 3.21.
 
jdofmemi said:
From a math standpoint it's as wrong as it gets, but from a tire perspective, it is perfectly correct.

Tires are listed in 32nds, no matter what the "proper" fraction is.

Even when you go to giant OTR tires, it is the same. I have purchased loader tires that shipped with the stated tread depth of 128/32nds.




Yes, but there is a huge difference between 3.73 and 3.21.
Click to expand...

I know, just bugs the shit out of me even though that’s how it is in that industry. I’m sure that there is a reason for it, but I don’t know what it is.
 
Phil123 said:
Well, first of all, I'd like to say I'm happy I sparked a 5th wheel debate lol I am going to get 5 tires and proceed with 5 tire rotations with these new ones.

So, after much thought (following all my previous much thought lol) I came to the conclusion that I may need to get a new set of wheels... Although the money I will spend on the wheels will have to be in place of a 2" lift... So what do you guys think about these two options (note, no spacers) :

A)
Get 275/70R18 Bridgestone Dueler @ 33.2" on stock 18" wheels

or

B)
Get 315/70/R17 Bridgestone Dueler @ 34.4" on :
American Racing AR1727973B - Baja - Satin Black - (17" X 9") - (5X127.00)
Universal Fit 17 in. / 9 in. / 5 x 127 / 83.1 / -12 mm
BOLT PATTERN (METRIC): 5x127.00
OFFSET: -12
BACKSPACING: 4.53
CENTERBORE: 83.06
LOAD RATING (LBS): 2500
CAP PART NO.: 1327000SB
LIP DEPTH: 1.21


Do you guys think options A and B can be done with no spacers and no rub ? Option B with no lift (I might get the 2" rancho lift in a couple of weeks if needed)? I mean, if option A doesn't rub, is it really worth 1.5k$ more to get option B with 1" more of tire ? (Reminder, this is a daily driver, not a 'every weekend offroader'... yet
Click to expand...

The wheels you have chosen in option B have a wheel spacer built in, the 4.5" backspace is less than factory wheels which will push them out from under the jeep a little.

My opinion is this... if you are ever wanting to run the 315's or 35's just build it that way from the start even if it means waiting a little longer to get all of the required parts. Additionally consider this, what do YOU want from YOUR jeep? A well mannered highway rig with good economy, a mall crawler, or a purpose built off-road machine licensed for the highway. There are compromises with each one and you are the one that needs to make a decision based on what it is that you want from your jeep.
 
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