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do you NEED to adjust gear ratio after tire upgrade?

Discussion in 'Wheels & Tires' started by forcepowrd07, Sep 13, 2009.

?

have you adjusted your differential after a tire upgrade?

Poll closed Dec 12, 2009.

  1. i have an upgraded tire size and lowered my gear ratio

    6 vote(s)
    8.0%

  2. don't plan on adjusting my gear ratio

    46 vote(s)
    61.3%

  3. haven't lowered my gear ratio, but i want to

    23 vote(s)
    30.7%
Page 3 of 5
  1. Sep 17, 2009 at 12:26 AM
    #41
    jdkeller

    #41
    jdkeller How many words can be fit in this s

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    Dome light LED, 6000k HID Headlights and fogs, Grillcraft black mesh, rear 5100's, Total Chaos UCA's, 285/75/16 BFG KM2's, Spidertrax spacers, Blacked out emblems, cb,kenwood tm270 ham radio, All Pro 3" leaf pack, Fox 2.0 coilovers, Revenge Fab Sliders, u bolt flip kit, Pioneer avh4200, bed bar with light and antenna, Wet Okoles, Weathertech Mats, Wet Okole Armrests, Rear KR Fab bumper, bed mat, N-Fab spare tire carrier with full size spare on 16" TRD rim, Bedlinered flares and grille. Camburg Spindles, All Pro front fenders.
    I want that same setup. I dont need the y-pipe tho. heck I dont need any of it :rolleyes:
     
    jdkeller, Sep 17, 2009
    #41
  2. Sep 17, 2009 at 2:43 AM
    #42
    TRDguyKC

    #42
    TRDguyKC Well-Known Member

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    Kris
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    dont get me wrong, its not annoyingly loud or anything, and i love the setup.... i dont need any of it either.... but i love it :).
     
    TRDguyKC, Sep 17, 2009
    #42
  3. Sep 17, 2009 at 4:57 AM
    #43
    cmfranks

    #43
    cmfranks Well-Known Member

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    Craig
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    Well guys and girls, i re-geared to 4:10s after putting on the 6 in lift and 33's and my mpg still only gets about 15mpg????? I did notice that it stays around 2200 rpm's at 70-75 mph on the highway.
     
    cmfranks, Sep 17, 2009
    #43
  4. Sep 17, 2009 at 5:52 AM
    #44
    chris4x4

    #44
    chris4x4 With sufficient thrust, pigs fly just fine. Moderator

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    FlimFlubberJAM
    Tenoe, AZ
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    4.10 gears, sliders, and lots of buttons.
    Are you correcting for tire size?
     
    chris4x4, Sep 17, 2009
    #44
  5. Sep 17, 2009 at 10:47 AM
    #45
    cmfranks

    #45
    cmfranks Well-Known Member

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    yes sir. after reading alot on which ratio to go w/ the majority told me 4:10 for 33's. so i did that but really didnt notice any better mpg's which was what i was hoping for :mad:
     
    cmfranks, Sep 17, 2009
    #45
  6. Sep 17, 2009 at 11:12 AM
    #46
    chris4x4

    #46
    chris4x4 With sufficient thrust, pigs fly just fine. Moderator

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    FlimFlubberJAM
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    4.10 gears, sliders, and lots of buttons.
    Interesting. When I regeared my Dodge, I went from 12 mpg to 14. Every time I have regeared, I have improved mpg.
     
    chris4x4, Sep 17, 2009
    #46
  7. Sep 17, 2009 at 11:15 AM
    #47
    98tacoma27

    #47
    98tacoma27 is going full "SANDWICH" Moderator

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    Some stuff. Not a lot, just some.
    What was the previous ratio?
     
    98tacoma27, Sep 17, 2009
    #47
  8. Sep 17, 2009 at 11:17 AM
    #48
    chris4x4

    #48
    chris4x4 With sufficient thrust, pigs fly just fine. Moderator

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    FlimFlubberJAM
    Tenoe, AZ
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    4.10 gears, sliders, and lots of buttons.
    On my Dodge, I went from 3:55's to 4:10's. Went from 31" tires to 32's.
     
    chris4x4, Sep 17, 2009
    #48
  9. Sep 17, 2009 at 11:39 AM
    #49
    98tacoma27

    #49
    98tacoma27 is going full "SANDWICH" Moderator

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    Some stuff. Not a lot, just some.
    Did you see a significant drop in RPM?
     
    98tacoma27, Sep 17, 2009
    #49
  10. Sep 17, 2009 at 12:03 PM
    #50
    chris4x4

    #50
    chris4x4 With sufficient thrust, pigs fly just fine. Moderator

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    FlimFlubberJAM
    Tenoe, AZ
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    4.10 gears, sliders, and lots of buttons.
    My rpms went from about 1600 at 65, to about 2200 at the same speed.
     
    chris4x4, Sep 17, 2009
    #50
  11. Sep 17, 2009 at 6:17 PM
    #51
    forcepowrd07

    #51
    forcepowrd07 [OP] Member

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    the 2 mpg gain doesn't seem worth a gear change on 32's? also, seems interesting that 98tacoma27 didn't get any form of gains. wonder what went wrong...
     
    forcepowrd07, Sep 17, 2009
    #51
  12. Sep 17, 2009 at 7:51 PM
    #52
    chris4x4

    #52
    chris4x4 With sufficient thrust, pigs fly just fine. Moderator

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    4.10 gears, sliders, and lots of buttons.
    Your never gonna make your money back on a gear change. I do it to ease some of the burden off the tranny and engine. When you get larger tires, more stress is put onto the drive train. Also, gains are dependant on peoples driving characteristics.
     
    chris4x4, Sep 17, 2009
    #52
  13. Sep 18, 2009 at 4:34 AM
    #53
    cmfranks

    #53
    cmfranks Well-Known Member

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    well, i do know that the 6in lift doesnt help anything. but you are right, it does help to take the burdon off of the tranny.
     
    cmfranks, Sep 18, 2009
    #53
  14. Sep 18, 2009 at 5:38 PM
    #54
    NumNutz

    #54
    NumNutz One of the original 7928

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    Lots.
    If you just wanted to re-gear for stock tire size (265/65/17) and wanted some more torque. A little more rubber on the ground, what would you re-gear to?
     
    NumNutz, Sep 18, 2009
    #54
  15. Sep 20, 2009 at 9:08 PM
    #55
    chris4x4

    #55
    chris4x4 With sufficient thrust, pigs fly just fine. Moderator

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    FlimFlubberJAM
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    4.10 gears, sliders, and lots of buttons.
    Either 4:10, or 4:56...Depending on your priority. 4:56 would get your rpms up kinda high.
     
    chris4x4, Sep 20, 2009
    #55
  16. Oct 5, 2009 at 5:06 PM
    #56
    jdkeller

    #56
    jdkeller How many words can be fit in this s

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    Jonathan
    Inland Empire, Ca
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    Dome light LED, 6000k HID Headlights and fogs, Grillcraft black mesh, rear 5100's, Total Chaos UCA's, 285/75/16 BFG KM2's, Spidertrax spacers, Blacked out emblems, cb,kenwood tm270 ham radio, All Pro 3" leaf pack, Fox 2.0 coilovers, Revenge Fab Sliders, u bolt flip kit, Pioneer avh4200, bed bar with light and antenna, Wet Okoles, Weathertech Mats, Wet Okole Armrests, Rear KR Fab bumper, bed mat, N-Fab spare tire carrier with full size spare on 16" TRD rim, Bedlinered flares and grille. Camburg Spindles, All Pro front fenders.
    I was at an offroad shop having my resis charged and I asked the guy about regearing to 4.56. He gave me a quote of $750 installed. Is that average?
     
    jdkeller, Oct 5, 2009
    #56
  17. Oct 5, 2009 at 6:30 PM
    #57
    chris4x4

    #57
    chris4x4 With sufficient thrust, pigs fly just fine. Moderator

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    4.10 gears, sliders, and lots of buttons.
    Sounds kinda high.....I think average is about $500 to 600.
     
    chris4x4, Oct 5, 2009
    #57
  18. Oct 5, 2009 at 8:09 PM
    #58
    jdkeller

    #58
    jdkeller How many words can be fit in this s

    Joined:
    Nov 26, 2008
    Member:
    #11040
    Messages:
    12,923
    Gender:
    Male
    First Name:
    Jonathan
    Inland Empire, Ca
    Vehicle:
    2008 Tacoma Prerunner TRD Offroad
    Dome light LED, 6000k HID Headlights and fogs, Grillcraft black mesh, rear 5100's, Total Chaos UCA's, 285/75/16 BFG KM2's, Spidertrax spacers, Blacked out emblems, cb,kenwood tm270 ham radio, All Pro 3" leaf pack, Fox 2.0 coilovers, Revenge Fab Sliders, u bolt flip kit, Pioneer avh4200, bed bar with light and antenna, Wet Okoles, Weathertech Mats, Wet Okole Armrests, Rear KR Fab bumper, bed mat, N-Fab spare tire carrier with full size spare on 16" TRD rim, Bedlinered flares and grille. Camburg Spindles, All Pro front fenders.
    Oh wow. Ok thanks Chris.
     
    jdkeller, Oct 5, 2009
    #58
  19. Oct 5, 2009 at 8:19 PM
    #59
    chris4x4

    #59
    chris4x4 With sufficient thrust, pigs fly just fine. Moderator

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    4.10 gears, sliders, and lots of buttons.
    ;)
     
    chris4x4, Oct 5, 2009
    #59
  20. Oct 6, 2009 at 3:21 PM
    #60
    b168

    #60
    b168 Well-Known Member

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    6" Pro Comp Lift 35" Xtreme A/T Pro Comp Tires 4.56 Gears
    hey wats the name of the offroad shop u went to? i had mine done at 4wp but it cost me hell a lot.

    thats cheap what they gave u
     
    b168, Oct 6, 2009
    #60
Page 3 of 5

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