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4.88 vs 4.56 gears 2.7L

Discussion in '1st Gen. Tacomas (1995-2004)' started by buettnerc, May 23, 2013.

  1. May 23, 2013 at 11:41 PM
    #1
    buettnerc

    buettnerc [OP] Chris

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    Ok guys i need help, im looking to regear my truck and i dont know weather to go with 4.56's or 4.88's. I have a 2.7 3rz-fe motor with few engine mods restoring power. i have 33inch tires, and anymore I am driving on the freeway but i go out wheeling as much as possible. which should i go with:confused::confused::confused::confused:
     
  2. May 23, 2013 at 11:43 PM
    #2
    PcBuilder14

    PcBuilder14 Well-Known Member

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    4:56 if you want it close to stock, 4:88 if you want a little more torque.
     
  3. May 23, 2013 at 11:44 PM
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    45acp

    45acp Paint me back in Wyoming again...

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    manual or auto?
     
  4. May 23, 2013 at 11:48 PM
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    buettnerc

    buettnerc [OP] Chris

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    See ive heard both ways, 4.56 is a stronger gear with fewer teeth and thicker gears. with 4.88's i would be screeming out on the freeway losing mpg right?? its a stick
     
  5. May 23, 2013 at 11:50 PM
    #5
    IDtrucks

    IDtrucks Just out for a rip are ya bud?

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    this.

    factory gears for a 2.7 automatic are 4.56

    if you are actually looking to regear get the 4.88s
     
  6. May 23, 2013 at 11:56 PM
    #6
    45acp

    45acp Paint me back in Wyoming again...

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    The differences in strength are so small, it doesn't matter. If you're worried about it, get them cryoed.

    What gears are you running now? If they are 4.30s like I had, they kinda suck for torque. Like PcBuilder said 4.56 is going to be close to stock, and not worth it IMO. I'd get 4.88s and have the power/torque when you want it and just go easy with the skinny pedal when you're trying to improve mpgs
     
  7. May 24, 2013 at 12:02 AM
    #7
    buettnerc

    buettnerc [OP] Chris

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    Stock 2.7 3rz manual comes with 4.10 gears I believe... At least thats what i've read. that makes sense to go with the 4.88's but you dont think im going to be redlining driving at 75? this is the first time ive looked into gears so i dont know that much.
     
  8. May 24, 2013 at 12:06 AM
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    45acp

    45acp Paint me back in Wyoming again...

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    Depends on several factors IIRC. Check your door code. I have a 2.7L 3RZ manual and I had 4.30 gears stock. Pretty sure 4.10s are in V6s/TRD models.
     
  9. May 24, 2013 at 12:19 AM
    #9
    buettnerc

    buettnerc [OP] Chris

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    What are you running in that truck now?
     
  10. May 24, 2013 at 12:46 AM
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    Blackdawg

    Blackdawg Dr. Frankenstein

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    Tons of factors. Just gotta look up the door code.

    Since your a stick. I'd go 4.88s. The 3rz will putt along at 3k rpm on the hwy no problem. And if you are getting into offroading it'll be very nice for that.
     
  11. May 24, 2013 at 1:09 AM
    #11
    45acp

    45acp Paint me back in Wyoming again...

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    I'm running 5.29s but I also have 35"s:eek:
     
  12. May 24, 2013 at 1:25 AM
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    Stereodesigner

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    Going by my door sticker my 96 2.7 auto has 4.10s
     
  13. May 24, 2013 at 1:34 AM
    #13
    PcBuilder14

    PcBuilder14 Well-Known Member

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    Hmm, in my 96 2.7 auto they were 4:10's?
     
  14. May 24, 2013 at 8:42 AM
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    TacoDell

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  15. May 24, 2013 at 2:30 PM
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    buettnerc

    buettnerc [OP] Chris

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    Another question for ya... should I go with 8 inch or 7.5 4.88s gears
     
  16. May 24, 2013 at 2:32 PM
    #16
    45acp

    45acp Paint me back in Wyoming again...

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    7.5" is for the front diff. 8.4" is the rear. 8" is TRD e-locker rear.
     
  17. May 24, 2013 at 3:00 PM
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    Blackdawg

    Blackdawg Dr. Frankenstein

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    You'll e need the 7.5 if your 4wd and if your open out back the 8.4 or if you have the locker the 8"
     
  18. Jul 11, 2013 at 9:38 PM
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    buettnerc

    buettnerc [OP] Chris

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    Now that I finally have the money to buy the gears I can only find 1 8.25 ring by midwest. I cant find any other maker on 4 wheel parts that make that size... not to mention they are reversed thread... why would reversed thread matter?
     
  19. Jul 11, 2013 at 9:39 PM
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    Blackdawg

    Blackdawg Dr. Frankenstein

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    Revers thread is for the drive shaft going the other way.

    And 8.25???

    Only 8" or 8.4" diffs man..or 7.5 front diff which is reverse cut.
     
  20. Jul 11, 2013 at 9:53 PM
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    BamaToy1997

    BamaToy1997 ASE Master Tech Vendor

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    Go to Randy's Ring and Pinion (RingPinion.com) and you will find any of the gears you want for a good price. They are my supplier for gears.
     
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