1. Welcome to Jeeps.net!

    You are currently viewing as a guest! To get full-access, you need to register for a FREE account.

    As a registered member, you’ll be able to:
    • Participate in all Jeep discussion topics
    • Transfer over your build thread from a different forum to this one
    • Communicate privately with other Jeep owners from around the world
    • Post your own photos in our Members Gallery
    • Access all special features of the site

What the biggest tire I can put on stock wrangler wheels? Already lifted with 35's

Discussion in 'Wheels & Tires' started by boondoc89, Aug 4, 2017.

  1. Aug 4, 2017 at 1:39 PM
    #1
    boondoc89

    boondoc89 [OP] Well-Known Member

    Joined:
    Feb 3, 2017
    Member:
    #912
    Messages:
    772
    Gender:
    Male
    First Name:
    alex
    Vehicle:
    08 JKU
    3 inch zone lift. Fox 2.0 shocks. 35 inch nitto ridge grapplers. Bushwacker flat fenders. No name steel bumpers front and back for now.
    Hey guys!! so I am having a hard time trying to find info on the largest tire I can put on stock wrangler jk wheels. I'm already lifted 3.5 inches and running 35's. But, what I want to know is how big of tire I can put on my stockies and use them as trail tires instead of beating the piss out of my moto metals. I appreciate the insight and advice in advance!!20170803_190449.jpg
     
  2. Aug 4, 2017 at 3:23 PM
    #2
    chris4x4

    chris4x4 With sufficient thrust, pigs fly just fine Moderator

    Joined:
    Jul 19, 2016
    Member:
    #2
    Messages:
    4,048
    Gender:
    Male
    If I remember, the stock wheels are about 7 or 8" wide. 295 width tire seems to be the max size listed by tire manufacturers.
     
    boondoc89 [OP] likes this.
  3. Aug 4, 2017 at 3:38 PM
    #3
    boondoc89

    boondoc89 [OP] Well-Known Member

    Joined:
    Feb 3, 2017
    Member:
    #912
    Messages:
    772
    Gender:
    Male
    First Name:
    alex
    Vehicle:
    08 JKU
    3 inch zone lift. Fox 2.0 shocks. 35 inch nitto ridge grapplers. Bushwacker flat fenders. No name steel bumpers front and back for now.
    I'll have to dismount the tires on my stock wheels and measure them. I'd really like to have a set of 37's and just use them as a designated trail set. Do you know of anybody that has 37's on their stock wheels?
     
  4. Aug 4, 2017 at 5:13 PM
    #4
    aggrex

    aggrex Well-Known Member

    Joined:
    Sep 12, 2016
    Member:
    #203
    Messages:
    3,970
    DE
    Vehicle:
    Backcountry '16
    Tuffy>AEV>TTO>JW>STech>EVOcage>MagnaFlow>SpiderTrax>RockHard>TF>SpringTail>67design>Bolt>GPCA>Curt>
    Watched a u-tuber review running 37s on OEM rims plus 1.5" spacers that needed some minor rr wheel well trimming. Your situation might vary with your lift but regearing will be needed if not done already.
     
  5. Aug 4, 2017 at 5:36 PM
    #5
    boondoc89

    boondoc89 [OP] Well-Known Member

    Joined:
    Feb 3, 2017
    Member:
    #912
    Messages:
    772
    Gender:
    Male
    First Name:
    alex
    Vehicle:
    08 JKU
    3 inch zone lift. Fox 2.0 shocks. 35 inch nitto ridge grapplers. Bushwacker flat fenders. No name steel bumpers front and back for now.
    I'll have to look that up!! I am regeared to 4.56's. I'm wondering now if that would be a low enough ratio for the 37s. :notsure:
     
  6. Aug 4, 2017 at 5:38 PM
    #6
    Rc Jeep

    Rc Jeep Well-Known Member

    Joined:
    Sep 8, 2016
    Member:
    #190
    Messages:
    465
    Gender:
    Male
    First Name:
    Ryan
    Vehicle:
    '16 Rubicon
    Evo mfg front coil overs Evo mfg rear coil overs Jks drag link flip Je reel 1310 front & rear driveshafts 37" Nitto trail grapplers 17x9 atx slabs Evo mfg quarter pounder w/stinger Evo mfg rear fascia w/ d ring mounts
    4.88 is close to stock gear for 37s. For crawling 5.13
     
  7. Aug 4, 2017 at 5:40 PM
    #7
    boondoc89

    boondoc89 [OP] Well-Known Member

    Joined:
    Feb 3, 2017
    Member:
    #912
    Messages:
    772
    Gender:
    Male
    First Name:
    alex
    Vehicle:
    08 JKU
    3 inch zone lift. Fox 2.0 shocks. 35 inch nitto ridge grapplers. Bushwacker flat fenders. No name steel bumpers front and back for now.
    That's kinda what I was thinking. Any idea what it's like driving on 35's and 4.88 or 5.13?? Top speed of 70 WFO?? Lol
     
  8. Aug 4, 2017 at 5:42 PM
    #8
    aggrex

    aggrex Well-Known Member

    Joined:
    Sep 12, 2016
    Member:
    #203
    Messages:
    3,970
    DE
    Vehicle:
    Backcountry '16
    Tuffy>AEV>TTO>JW>STech>EVOcage>MagnaFlow>SpiderTrax>RockHard>TF>SpringTail>67design>Bolt>GPCA>Curt>
    Your 4.56 should be good to go based on the chart

    3_6-jkgearing.jpg
     
    JKBob 25 likes this.
  9. Aug 4, 2017 at 5:44 PM
    #9
    boondoc89

    boondoc89 [OP] Well-Known Member

    Joined:
    Feb 3, 2017
    Member:
    #912
    Messages:
    772
    Gender:
    Male
    First Name:
    alex
    Vehicle:
    08 JKU
    3 inch zone lift. Fox 2.0 shocks. 35 inch nitto ridge grapplers. Bushwacker flat fenders. No name steel bumpers front and back for now.
    Does that chart go the same for the 3.8?? I don't have the 3.6 Pentastar motor unfortunately lol
     
  10. Aug 4, 2017 at 5:51 PM
    #10
    aggrex

    aggrex Well-Known Member

    Joined:
    Sep 12, 2016
    Member:
    #203
    Messages:
    3,970
    DE
    Vehicle:
    Backcountry '16
    Tuffy>AEV>TTO>JW>STech>EVOcage>MagnaFlow>SpiderTrax>RockHard>TF>SpringTail>67design>Bolt>GPCA>Curt>
    Probably need different chart for the 3.8 but for crawling it might be close. Your experience with 4.56 and 35s versus 37s should be ok
     
  11. Aug 4, 2017 at 5:55 PM
    #11
    boondoc89

    boondoc89 [OP] Well-Known Member

    Joined:
    Feb 3, 2017
    Member:
    #912
    Messages:
    772
    Gender:
    Male
    First Name:
    alex
    Vehicle:
    08 JKU
    3 inch zone lift. Fox 2.0 shocks. 35 inch nitto ridge grapplers. Bushwacker flat fenders. No name steel bumpers front and back for now.
    Ill have to give it a shot. Thanks for the info fellas!!
     
  12. Aug 4, 2017 at 7:43 PM
    #12
    JKBob 25

    JKBob 25 Well-Known Member

    Joined:
    Mar 22, 2017
    Member:
    #1197
    Messages:
    3,748
    Gender:
    Male
    First Name:
    Bob
    Jersey Shore, NJ
    Vehicle:
    2016 JK Wrangler Sport
    2" Superlift kit. 315/ 70/17.
    I have a get questions about this chart. Quadratec posts one in their forum also.,
    But aggrex. This one makes a little more sense to me. But I still have a question or 2. But I don't want to hijack the thread.

    Be fore warned. I will be back....when I feel it's where it's more appropriate. :cool:

    I really hate this fricking tablet. It changes things after I correct and post. Tired of constantly reposting. Make out what you can. Friday night. I'm tired.
     
  13. Aug 4, 2017 at 7:53 PM
    #13
    aggrex

    aggrex Well-Known Member

    Joined:
    Sep 12, 2016
    Member:
    #203
    Messages:
    3,970
    DE
    Vehicle:
    Backcountry '16
    Tuffy>AEV>TTO>JW>STech>EVOcage>MagnaFlow>SpiderTrax>RockHard>TF>SpringTail>67design>Bolt>GPCA>Curt>
    Umm ok

    Screenbebackshot.jpg
     
    chris4x4 and JKBob 25 like this.
  14. Aug 4, 2017 at 8:25 PM
    #14
    JKBob 25

    JKBob 25 Well-Known Member

    Joined:
    Mar 22, 2017
    Member:
    #1197
    Messages:
    3,748
    Gender:
    Male
    First Name:
    Bob
    Jersey Shore, NJ
    Vehicle:
    2016 JK Wrangler Sport
    2" Superlift kit. 315/ 70/17.
    I don't like you no more. Your constantly quoteing me. Lol.
    So when you gonna be ready so we can run the bunny trails at Rausch Creek?

    Back to the gearing issue. According to the chart you posted. I'm apparently right on.
    Please...any one...agree or disagree.
    According to the Dealership shit sheet. I have 321s. Now, that is with 225s on 16 inch wheels. I was getting 20 plus to the gallon. I jump up to 33s on 17 inch wheels. And I'm still getting 20 plus. And now with the chart that aggrex posted. I get it. It's as close to what I'm running, and what gearing I have. Makes the most sense. I....I think I get it.

    Still not sure how I can jump from 285s on 16, to 305s on 17s. And keep the gas milage?

    Forgot to mention. I didn't take my Meds tonight. Lol
     
  15. Aug 4, 2017 at 9:34 PM
    #15
    aggrex

    aggrex Well-Known Member

    Joined:
    Sep 12, 2016
    Member:
    #203
    Messages:
    3,970
    DE
    Vehicle:
    Backcountry '16
    Tuffy>AEV>TTO>JW>STech>EVOcage>MagnaFlow>SpiderTrax>RockHard>TF>SpringTail>67design>Bolt>GPCA>Curt>
    Just a few questions:
    **are you calculating mpg manually 225 vs 305?
    **do GPS speeds match speedometer?
    **any speeding tickets lately?
    **rpms the same 225 vs 305?
    ** use the chart only as a guide/reference (or any chart)

    Screenjkbobshot.jpg
     
    Last edited: Aug 5, 2017
    JKBob 25 and chris4x4 like this.
  16. Aug 5, 2017 at 3:02 PM
    #16
    JKBob 25

    JKBob 25 Well-Known Member

    Joined:
    Mar 22, 2017
    Member:
    #1197
    Messages:
    3,748
    Gender:
    Male
    First Name:
    Bob
    Jersey Shore, NJ
    Vehicle:
    2016 JK Wrangler Sport
    2" Superlift kit. 315/ 70/17.
    Calculating mpg between the 225s and 305s. No...not yet. But will.
    What GPS?
    Spending tickets.....No
    RPMs is actually lower by about 300 or so.

    Ok here's what I have going on.
    When installed the new tire and wheels. I recalculated for 33 inch tires with my Superchip. When I went home rig was very sluggish. Even at highway speeds. So when I got home I checked to see exactly what Pro Comp chart stated the tire size. They are 32.6. So I recalculated to 32.5 as the Superchip only goes by. 25 increments. Ran so much better. Great throttle response, Awesome acceleration and RPMs jumped up by 150 or so. And after a couple weeks running at 32.5 inches I'm still getting 20 plus MPGs. And I constantly check since I run 23 miles one to work all pretty much highways.

    So now. I happen to run through one of those "your speed is" electronic signs on the side of the road. And at 50, the sign said I was doing 48. I ran past it numerous times going to work. And it said the same thing every time.

    Back to the chart. At 70 I'm running at 1900 RPMs. And according to the chart. I'm running 3.21s. So that makes sense. As far as running 2 MPH less than what my speedo shows. Not sure how that's happening.
     
  17. Aug 5, 2017 at 3:27 PM
    #17
    aggrex

    aggrex Well-Known Member

    Joined:
    Sep 12, 2016
    Member:
    #203
    Messages:
    3,970
    DE
    Vehicle:
    Backcountry '16
    Tuffy>AEV>TTO>JW>STech>EVOcage>MagnaFlow>SpiderTrax>RockHard>TF>SpringTail>67design>Bolt>GPCA>Curt>
    Let's not rock the boat or JK since your ultra pleased with the look, MPGs and performance. The Superchip did its job recalibrating for the increased tire size and adjusting the AT shift points. Some jeepers regear the 321s but your bonus is the great MPGs for a JK. My GPS unit has mirrored my speedometer on trips. Experienced users of the chart typically prefer to be in the upper green area or lower blue area but so far you are happy with your JKs performance and that's all that counts :). See nothing obscene or vulgar when we stick to jeeps. LoL
     
    JKBob 25 and chris4x4 like this.
  18. Aug 5, 2017 at 3:52 PM
    #18
    OFFGRID

    OFFGRID Well-Known Member

    Joined:
    Oct 3, 2016
    Member:
    #317
    Messages:
    2,018
    Gender:
    Male
    First Name:
    Peter
    Houston
    Vehicle:
    1979 Jeep CJ7, 258, TH350, NP208
    Howell fuel injection, header, HEI distributor, TH350, NP208, SOA lift with YJ springs in the front & GW springs in the Rear. AMC20 with G2 1 piece chromos trussed, Dana 30 with G2 chromos and 760x ujoints and MM Stainless Hubs, Geared 4.56. Tom Woods shafts, Metal cloaks, Caged, 37" Toyo MTs.
    Wow! Aggrex has been doing his homework. It is not so much the wheel as the tire is limiting you. You have To look at the specs on the tire. They will tell you the recommended wheel width range. If the tire specs say they recommend 8.0-10.0, in most cases you can go an extra inch up or down i.e. You could install said tire on a 7.0-11.0 wheel.
     
    JKBob 25, aggrex and chris4x4 like this.
  19. Aug 5, 2017 at 4:37 PM
    #19
    aggrex

    aggrex Well-Known Member

    Joined:
    Sep 12, 2016
    Member:
    #203
    Messages:
    3,970
    DE
    Vehicle:
    Backcountry '16
    Tuffy>AEV>TTO>JW>STech>EVOcage>MagnaFlow>SpiderTrax>RockHard>TF>SpringTail>67design>Bolt>GPCA>Curt>
    Thanks Offgrid! Just holding the fort as best as I could until you got back...lol
     
    JKBob 25, OFFGRID and chris4x4 like this.
  20. Aug 5, 2017 at 5:49 PM
    #20
    OFFGRID

    OFFGRID Well-Known Member

    Joined:
    Oct 3, 2016
    Member:
    #317
    Messages:
    2,018
    Gender:
    Male
    First Name:
    Peter
    Houston
    Vehicle:
    1979 Jeep CJ7, 258, TH350, NP208
    Howell fuel injection, header, HEI distributor, TH350, NP208, SOA lift with YJ springs in the front & GW springs in the Rear. AMC20 with G2 1 piece chromos trussed, Dana 30 with G2 chromos and 760x ujoints and MM Stainless Hubs, Geared 4.56. Tom Woods shafts, Metal cloaks, Caged, 37" Toyo MTs.
    Just to add one more thing. Dually wheels are 6 in wide and shops are installing 35x12.50 all the time.
     
    aggrex and chris4x4 like this.
To Top