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Regearing for 33s

Discussion in '5th Gen 4Runners (2010-2024)' started by 2013limited4runner, Jan 6, 2021.

  1. Jan 6, 2021 at 6:46 AM
    #1
    2013limited4runner

    2013limited4runner [OP] New Member

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    I am planning on putting 285/70/17 tires on my 2013 limited 4Runner next week. I have seen many people saying that they need to regear due to awful mpg and many other factors. Do you all think I would need to regear? Also how much should I expect a regear to cost?
     
    Toy4X4 and Thatbassguy like this.
  2. Jan 6, 2021 at 7:47 AM
    #2
    MeefZah

    MeefZah ---

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    Unless the AWD system and gearing in the Ltd is a lot different than the other part time 4WD models, you are not going to need to regear. There's about a million members here with 33s and factory gearing and no complaints whatsoever.
     
    Ironguy, JK BRO, Toy4X4 and 4 others like this.
  3. Jan 6, 2021 at 7:53 AM
    #3
    2013limited4runner

    2013limited4runner [OP] New Member

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    Alright thanks for the help.
     
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  4. Jan 6, 2021 at 8:36 AM
    #4
    koukimonster

    koukimonster DYNO4

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    Bigger A/T LT Tires, Slight Lift, Sliders, Rack, Lights, etc.
    I wouldn't worry about it if going with a tire UP TO 33".
     
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  5. Jan 6, 2021 at 11:45 AM
    #5
    Mtbpsych

    Mtbpsych New Member

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    33’s here, wouldn’t consider it one bit. Maybe at 35’s, but at 33’s it would be a waste of money.
     
  6. Jan 6, 2021 at 12:34 PM
    #6
    Thatbassguy

    Thatbassguy New member? Really??

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    +1 to these comments.

    If you want to maintain decent fuel economy, stick with an SL rated tire, as these tend to run lighter than LT tires. Also, look for tires that run lighter than average.

    I am on C rated 285's with 500+ LBS of constant weight. I get 15-19 MPG depending on what I'm doing. With SL rated 285's and less weight, I'm sure I could get 20 on the highway.

    If you're towing heavy a lot, then you may want to consider a regear.
     
    Rob41, Redned and Toy4X4 like this.
  7. Jan 6, 2021 at 1:47 PM
    #7
    2013limited4runner

    2013limited4runner [OP] New Member

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    I do lawn care work and also ride dirt bikes and atvs. My trailer is 800 lbs and the commercial mower I use is another 900lbs. Would you regear for that weight?
     
    Thatbassguy[QUOTED] likes this.
  8. Jan 6, 2021 at 1:55 PM
    #8
    Thatbassguy

    Thatbassguy New member? Really??

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    I wouldn't. I have towed a small trencher a few times with the 285's, and thought it was fine.

    If you tow a lot, I'm guessing you're patient enough to live with a 3-4% loss of power. I use S mode to keep it out of overdrive while towing.

    You could always do the tires and regear later if you feel it's necessary. :notsure:
     
  9. Jan 6, 2021 at 7:48 PM
    #9
    elnip

    elnip New Member

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    My .02, I re-geared with 285's because the transmission was ultimately driving me crazy hunting 4-5th. I did keeping it in S around town and towing but
    was not satisfied. Towing my trailer (1200lb) after re-gear it is so much nicer and I gained 2 mpg in town. Some say meh but for me hands down best mod
    I have done.
     
  10. Jan 6, 2021 at 8:35 PM
    #10
    2013limited4runner

    2013limited4runner [OP] New Member

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    I am gonna try without re gear. How much should I expect for a re gear if I decide to?
     
    Thatbassguy likes this.
  11. Jan 7, 2021 at 6:45 AM
    #11
    Agent_Outside

    Agent_Outside A Guy A Girl and A Trail

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    I think even stock the 4Runner could use a slightly taller gearing. I think it’s a great mod, it’s just so damn expensive.
     
    gunsnob likes this.
  12. Jan 7, 2021 at 6:53 AM
    #12
    2013limited4runner

    2013limited4runner [OP] New Member

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    Yep very expensive
     
  13. Jan 8, 2021 at 11:44 AM
    #13
    elnip

    elnip New Member

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    After core charge refund all said and done it was $1900ish. I includes the bushing option and the diff oil so I had it all on hand.
     
  14. Jan 8, 2021 at 11:56 AM
    #14
    Agent_Outside

    Agent_Outside A Guy A Girl and A Trail

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    What did you get and who did you get it from?
     
  15. Jan 8, 2021 at 12:17 PM
    #15
    elnip

    elnip New Member

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    4.56's and from EGCS. Did the 3rd member and clamshell core swap so everything was already set to install when they arrived.
     
  16. Jan 8, 2021 at 12:55 PM
    #16
    newlife

    newlife Not all who wander are ...... squirrel

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    All of them.
    If you do go gears I second ecgs they did the regear for the Tacoma and it was night and day difference.
     
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  17. Jan 12, 2021 at 6:32 AM
    #17
    peter2772000

    peter2772000 New Member

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    No one mentioned speedo corrections.....

    Used to be you simply removed the speedo gear and replaced with the proper one. Regeared my 89 S-10 back in 91' and it took programmers two or three tries before properly programming my tranny module.
    What's involved in reprogramming the speedo on these things?
     
  18. Jan 12, 2021 at 6:48 AM
    #18
    Mtbpsych

    Mtbpsych New Member

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    Going through a speed zone and seeing how much the speedo is off by:D
     
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  19. Jan 12, 2021 at 7:30 AM
    #19
    Sundy

    Sundy New Member

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    Don't forget a post-it note for your speed correction factors :burnrubber: (only kidding, if you're really concerned just use a GPS app on your phone)
     
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  20. Jan 12, 2021 at 8:35 AM
    #20
    koukimonster

    koukimonster DYNO4

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    Where is speed read on the 4Runner? On some cars it's basically at the wheel, via the ABS sensor.
     
  21. Jan 12, 2021 at 8:50 AM
    #21
    OpBalance

    OpBalance New Member

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    Pretty sure it’s the front wheels, so it shouldn’t be an issue.
     
  22. Jan 12, 2021 at 9:07 AM
    #22
    Thatbassguy

    Thatbassguy New member? Really??

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    285's actually make the speedometer more accurate than stock. With stock size tires, your speedometer is reading about 3-4% high.
     
    peter2772000[QUOTED] and elnip like this.
  23. Jan 12, 2021 at 9:27 AM
    #23
    koukimonster

    koukimonster DYNO4

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    ^ Yeah I think he meant with gearing. Perhaps in some vehicles, the speedo reads something in the gearing. If a gear was changed, maybe the speedo would read way off even if the truck was going the same speed.
     
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  24. Jan 12, 2021 at 9:48 AM
    #24
    Thatbassguy

    Thatbassguy New member? Really??

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    Oh, I see. In that case, you'd need a tuner to reprogram the ECU. I'm sure that would be expensive.
     
  25. Jan 12, 2021 at 5:06 PM
    #25
    elnip

    elnip New Member

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    This^^^now with the 4.56's it is reading about .5 mph slow according to GPS
     
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  26. Dec 1, 2023 at 8:12 PM
    #26
    Yotaholic

    Yotaholic New Member

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    I am on 34s. The truck drives fine but my mpg has gotten bad. 10 mpg if I do 80 mph
     
  27. Dec 1, 2023 at 9:32 PM
    #27
    Justkelvin

    Justkelvin New Member

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    Will these things do 80 lol
     
  28. Dec 1, 2023 at 9:34 PM
    #28
    Yotaholic

    Yotaholic New Member

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    Lol. They will do it all day long, but a gallon of gas every 10 minutes
     
  29. Dec 1, 2023 at 9:46 PM
    #29
    Thatbassguy

    Thatbassguy New member? Really??

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    Mine was clocked at 98 by my best friend, the Georgia State trooper who let me off with a warning. ;)
     
  30. Dec 1, 2023 at 9:52 PM
    #30
    Yotaholic

    Yotaholic New Member

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    He must have been impressed by the truck's ability to do it :)
     
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