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Gear ratio and Tires

Discussion in 'Wheels & Tires' started by jaygo, May 2, 2017.

  1. May 2, 2017 at 10:06 AM
    #1
    jaygo

    jaygo [OP] New Member

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    2016 Jeep Wrangler Unlimted Rubicon Hard Rock
    Banks Cold Air Intake
    Hello Everyone,

    I am new to this forum and I am looking for some advice on tires and gear ratios. I have done a lot of research and it all comes back to a matter of preference...better gas mileage over power, power over gas mileage, and then middle of the road.

    I currently own a 2016 Wrangler Unlimited Rubicon Hard Rock Edition. Bought brand new and came with Dana 44's front and rear and geared @ 4:10 and has 255/75 R17's BF Goodrich's. The tires currently equipped I know are equivalent to about a 32" tire but I'd like to go up to a 35/12.5 R17 without having to re-gear.

    My question is: Can I get away with equipping my rig with a 35" size tire without having to re-gear? And if so, what am I losing because I know what I'm gaining?

    Any help is truly appreciated.
     
  2. May 2, 2017 at 11:36 AM
    #2
    OFFGRID

    OFFGRID Well-Known Member

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    Houston
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    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.
    Yes you can without regearing. I ran 37s without regearing. I finally regeared when I went to 40s and I went with 5.13 gears. You will feel pretty doggy off the line and when trying to pass another vehicle. You will also lose a couple miles per gallon.
     
    JKBob 25 likes this.
  3. May 2, 2017 at 12:08 PM
    #3
    Rc Jeep

    Rc Jeep Well-Known Member

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    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
    I am currently on 37s with 4:10. It's not ideal but still works fine.
     
    JKBob 25 likes this.
  4. May 2, 2017 at 1:22 PM
    #4
    jaygo

    jaygo [OP] New Member

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    2016 Jeep Wrangler Unlimted Rubicon Hard Rock
    Banks Cold Air Intake
    Thanks OFFGRID. I appreciate the info. This is really going to help as I am set to pick up some pretty nice 35" NITTO Grapplers for a great price. I think eventually I will gear up to a 4:53 but for the time being I am happy where I am at. I am hoping that with the Banks Cold Air Intake I installed - it will help offset the gas mileage a bit but I know it's not going to be a lot.
     
  5. May 2, 2017 at 1:37 PM
    #5
    teamdirtbash

    teamdirtbash Member

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    Dirtbashjku
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    2014 Wrangler 4 door
    Stinger , smitty built winch , cold air , 93 tune , 30 inch Cooper tires stock height . Will update when I do more
    I have a tuner that does everything so don't worry about gas mileage if your going to upgrade to a tuner it will save u gas and add power depending witch tune you choose , also u can change the tire size in the computer so your speedo is correct speed at all times hope I helped u with gas mileage part.
     
    JKBob 25 likes this.
  6. May 2, 2017 at 3:30 PM
    #6
    jaygo

    jaygo [OP] New Member

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    Banks Cold Air Intake
    What type of tuner are you using? I know I need to get one if I am going to upgrade my tires so I can adjust my speedo. Thanks #teamdirtbash
     
  7. May 2, 2017 at 6:41 PM
    #7
    JKBob 25

    JKBob 25 Well-Known Member

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    Jersey Shore, NJ
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    2016 JK Wrangler Sport
    2" Superlift kit. 315/ 70/17.
    I have a Superchip. Retuned to the 305/17s im running now, from 225/16s. And lost less than a mile per. Also. From talking to several members here, and doing some research. I found the so called cold air intake systems don't really help. You can achieve the same air flow using a much cheaper air filter.
     
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