How do 4.88 axle gears and 35" tires affect fuel economy in a Jeep Wrangler?

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  • čas přidán 26. 08. 2024
  • If you are contemplating a gear change you've got to watch this video first!
    I was curious how my new axle gears and 35" tires affect fuel economy so I did a test. You'll be amazed with the results. In this video, I take a road trip and calculate fuel mileage along the way. I was pretty surprised with the results.
    I hope this helps you answer the question! That is...to regear or not to regear?
  • Auta a dopravní prostředky

Komentáře • 37

  • @knightscape
    @knightscape Před 5 měsíci +1

    Stronger sway bar will help with your handling in the wind. I got the ORO swayloc. Instantly improved my handling… only lost about an inch or two of flex on the disengaged position from completely removing the swaybar.

  • @Nodnarb1776
    @Nodnarb1776 Před 8 měsíci +2

    The new 8 speed is nice. I have a 2015 automatic with 4.88 gears and 35s. Mine gets 14 mpg running 2,900 rpm at 70 mph.

    • @caseycrawls4466
      @caseycrawls4466  Před 7 měsíci +2

      Oh wow...mine isn't quite that high. Appreciate the comment.

  • @johnbeebe1190
    @johnbeebe1190 Před 5 měsíci +1

    I have 4.88 ratio' in my Rubicon. However I have an L-83 Gen 5 V8. I'm calculating 19.3 MPG with the GMC 8 speed transmission. The tire size is 37"". RPM at 70 is 2200. 2 door.

    • @caseycrawls4466
      @caseycrawls4466  Před 4 měsíci

      Oh man...I'd love to see pics of your Jeep and the engine.

  • @gabrieldalcomune3044
    @gabrieldalcomune3044 Před 11 měsíci +3

    Thanks for the video, I’ve been debating between 4.56 or 4.88 for my JLU with a 2.0. Not sure I plan on going 37s as 35s feel like plenty for now for my wheeling.

    • @alfa8822
      @alfa8822 Před 10 měsíci

      I'm debating the same thing. I still haven't made my decision yet.

    • @gabrieldalcomune3044
      @gabrieldalcomune3044 Před 10 měsíci +1

      @@alfa8822 I ended up choosing 4.56s. Probably gonna stay on 35s either way. Gonna have the shop install them on monday the 23rd along either an eaton e locker in the rear.

    • @alfa8822
      @alfa8822 Před 10 měsíci

      @@gabrieldalcomune3044 do you usually carry a lot of gear inside your jeep? I don’t plan on pulling a trailer but I will have a roof top tent and overlanding gear in the back.

    • @gabrieldalcomune3044
      @gabrieldalcomune3044 Před 10 měsíci +1

      @@alfa8822 Nah my jeep stays very light most of the time. If I go out to the trails at most it’s some tools, food, and water. Working getting a few spare parts to keep in the stockpile in case anything breaks while i’m away from home. Mostly shafts and tie rod ends I wanna have ready.
      That and with a 2.0, IF i do go to 37s it’s not that bad RPM wise apparently. A few XRs on the forum still get 8th gear with 37s and the 2.0.

    • @mwp597
      @mwp597 Před 4 měsíci

      I went with 4.56 and now wish i would have went with 4.88's. I'm thinking of spending the 2500 to go to 4.88's. I do a lot of mountain pass driving and off road driving in the mountains i feel like i don't have enough gears some times. I own a 2014 Wrangler JKU sport Yukon limited slip in the rear and Eaton turetrac up front.

  • @johncarlson9921
    @johncarlson9921 Před rokem

    Buckee’s is growing. On the way to Orange Beach, AL., we needed to turn south off I-10. Well, what do we find?
    A new Buckee’s!

  • @tripleseven8361
    @tripleseven8361 Před 27 dny

    I have the same tires and gear ratio on my 2024 JLRU… I’m getting about 15.8 miles per gallon… ( Mostly driving in M8/D8)…I think I would do better if I had mostly miles and miles or flat terrain, rather than the uphill and downhill that I constantly have to deal with here, in New Brunswick, Canada…

  • @Jeeptalkshow
    @Jeeptalkshow Před 9 měsíci +1

    It's pretty funny we started talking about Bucees on the show, and many didn't know what it was. Listeners were most interesed in Beaver Nuggets! lol Beaver Nuggets were a big hit at a Jeep Talk Show Off-Road Texas event. :D

    • @caseycrawls4466
      @caseycrawls4466  Před 9 měsíci +1

      I love me some Buc-ee's! Appreciate the comment and thanks for watching. I listen to your show all the time...great stuff.

    • @Jeeptalkshow
      @Jeeptalkshow Před 9 měsíci

      @@caseycrawls4466 lol you know the saga about the Beaver Nuggets then. Have you heard about the Jeep Talk Show Morning Thunder? Saturday morning jeeps and coffee meetup in Katy.

    • @caseycrawls4466
      @caseycrawls4466  Před 9 měsíci

      I have and it sounds like a great idea. I'd love to attend but going out of town this weekend. Will it be a monthly thing or are y'all waiting to see what the turnout looks like?

    • @Jeeptalkshow
      @Jeeptalkshow Před 9 měsíci +1

      Yes, monthly is the plan. :D

    • @Jeeptalkshow
      @Jeeptalkshow Před 9 měsíci

      I'm surprised you don't have more subscribers, you have a wide variaty of Jeep content!

  • @MrCheerbo
    @MrCheerbo Před 2 měsíci +1

    So if I put 35 on my gladiator I needed to re gear

  • @wessely32
    @wessely32 Před 7 měsíci +1

    Hello, like the video! Have you noticed any jerking when slowing down? I’ve heard a few people say that they have had jerking when the transmission shifts down after going to 4.88s

    • @caseycrawls4466
      @caseycrawls4466  Před 7 měsíci +2

      No, I’ve not noticed anything like that. Drives very well with the 4.88 gears.

    • @tripleseven8361
      @tripleseven8361 Před 27 dny

      Sometimes… I don’t find the transmission particularly smooth in any case…

  • @jonyalghazili5029
    @jonyalghazili5029 Před 4 měsíci +1

    Question what the size of Jeep wrangler Sport 2019 JL axle ratio is it 4.10 any help

    • @caseycrawls4466
      @caseycrawls4466  Před 4 měsíci

      The sport should be 3.45 from the factory.

    • @mwp597
      @mwp597 Před 4 měsíci

      My 2014 JKU wrangler sport had 3.27 gears from the factory. Do a Vin number look up on line for Jeeps and that should tell you what gears you have or go a Dodge dealer let them run the vin and can tell what the gears are. You call any Dodge dealer too.

  • @Tyler-ti9hn
    @Tyler-ti9hn Před 5 měsíci +2

    You can buy it new with 4.88

    • @tripleseven8361
      @tripleseven8361 Před 27 dny

      Yes…My 2024 JLRU came with 4:88 from the factory…

  • @dad3562
    @dad3562 Před 6 měsíci

    Great video! Think 37’s will be okay with 4.88’s? I’m looking to get the 2 door JLR in a 6 speed, V6, but order with 4.88’s and run 37’s.

    • @caseycrawls4466
      @caseycrawls4466  Před 6 měsíci +1

      Thanks for the comment…I really like the 4.88 gear and, yes, it would be great with 37” tires. I wanted the flexibility to move to a 37 when I installed the gears, that’s why I went with this gear. Good luck with your Jeep…I love this little 2 door!

  • @franklantos6361
    @franklantos6361 Před rokem

    Hello. Where did you get your gear done ?

    • @caseycrawls4466
      @caseycrawls4466  Před rokem +1

      Insane Off Road in Huffman…owner is Tommy and has done my Green Jeep and my buggy. He’s really good and a standup guy. He did gears in a friends TJ as well. He has locations in Huffman as well as the Spring area…believe he just opened a location off I45.

  • @jonyalghazili5029
    @jonyalghazili5029 Před 4 měsíci

    Question what the size of Jeep wrangler Sport 2019 JL axle ratio is it 4.10 any help

    • @melvin5818
      @melvin5818 Před 3 měsíci

      depends if its auto or manual but typically you are getting 3.45 gear for sport models