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4.56 or 4.88 gears

Discussion in '4 Cylinder' started by dillonk1602, Mar 5, 2020.

  1. Mar 5, 2020 at 10:00 AM
    #1
    dillonk1602

    dillonk1602 [OP] Well-Known Member

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    san diego
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    Vehicle Modifications: TACOMA 2007 FRONT TOTAL CHAOS 5LUG ,LONG TRAVEL KIT 13" OF TRAVEL KING COIL OVER (550 POUND SPRING RATE) (18 INCH COIL) REAR BED CAGE 16" SMOOTH BODY FOX SHOCKS 2.5 2.0 / 2.5 BUMP STOPS FOX ICON ADD LEAF PACK WITH OEM SPRING 11" OF TRAVEL TRUCK COMES SPRING UNDER BY MANUFACTURE TOYOTA REGEAR TO 4.0 WITH AUBURN UNIT ENGINE 2TR-FE WITH AFE COLD AIR IN TAKE DOUG THORLEY HEADER MAGNAFLOW EXHAUST TIRE S NEW KO2 32/11.5 METHOD RIM 15" WITH -20MM OFF SET
    putting 33 12.5 on my tacoma 2007 2.7 2tr-fe thinking on doing 4.88 but is that to much?
    its auto
     
  2. Mar 6, 2020 at 7:50 PM
    #2
    mistermanny

    mistermanny Well-Known Member

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    For 33s
    Mostly city = 4.88s
    Mostly hwy = 4.56s
     
    '14RC and Tyler Lacasse like this.
  3. Mar 6, 2020 at 9:17 PM
    #3
    Sep1911

    Sep1911 Well-Known Member

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    This. I have 33x11.2 tires with 4.88s gears. In the city they're nice, but on the highway the RPM is slightly too high. I'll often find myself trying to shift into the next gear before realizing I'm already in 5th and that there's no next gear. However, I take the bad with the good. I get decent MPG running 285/75/16 tires, and off road the extra gear reduction helps. With a manual, getting into traffic the extra reduction helps. On the highway most of the times I just stay in the right lane going the exact speed limit to maximize MPG. I think you already know how underpowered the 2TR is, and with 4.88s you can still accelerate in the highest gear without needing to downshift while on the highway. I dont know if you have auto or manual, but with a manual at 35MPH I'm already in 5th @ 1500RPM with conservative driving. At 65MPH you're going to be at about 2500rpm. Your RPMs will be higher than factory, but you will be in a better place in the power band for road driving. Everyones driving style is different and interpretations of economy driving seem to vary, but I get 21-23mpg regularly so I'm happy, but I'm also getting passed by everyone so keep that in mind.

    If you actually offroad and have a manual go with the 4.88s, you'll appreciate the extra reduction and less clutch work, if you're auto go with 4.56s.
     
    dillonk1602 [OP] and mistermanny like this.
  4. Mar 10, 2020 at 6:56 AM
    #4
    dillonk1602

    dillonk1602 [OP] Well-Known Member

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    Vehicle Modifications: TACOMA 2007 FRONT TOTAL CHAOS 5LUG ,LONG TRAVEL KIT 13" OF TRAVEL KING COIL OVER (550 POUND SPRING RATE) (18 INCH COIL) REAR BED CAGE 16" SMOOTH BODY FOX SHOCKS 2.5 2.0 / 2.5 BUMP STOPS FOX ICON ADD LEAF PACK WITH OEM SPRING 11" OF TRAVEL TRUCK COMES SPRING UNDER BY MANUFACTURE TOYOTA REGEAR TO 4.0 WITH AUBURN UNIT ENGINE 2TR-FE WITH AFE COLD AIR IN TAKE DOUG THORLEY HEADER MAGNAFLOW EXHAUST TIRE S NEW KO2 32/11.5 METHOD RIM 15" WITH -20MM OFF SET
  5. Mar 22, 2020 at 9:34 AM
    #5
    ROAD DOG

    ROAD DOG Well-Known Member

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    FEW



    tape up the tach
    most by the seat o Ur pants couldnt tell the diff

    i wouldnt spend the$$$$$ to change from 1 to the other

    both are stump pullers in the dirt

    if i were strictly hiway id want 3.56s
     
  6. Mar 30, 2020 at 10:54 PM
    #6
    bobbyhill

    bobbyhill Active Member

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    Magnaflow muffler, push bar, 3 inch lift kit, 31 inch tires,icon rims15x8, black mess grill,32inch light bar
    Does anyone know what the spline is for the shafts looking to installing a Detroit true track locker soon but need to find spine count
     
  7. Apr 6, 2020 at 10:51 AM
    #7
    5150Bronco

    5150Bronco Well-Known Member

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    4:56 is what I’m going with.

    consider weight too. Be good to the motor with re gearing.
     

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