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Thread: Toyota g series diff ratios

  1. #1
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    Toyota g series diff ratios

    I'm looking at building a diff for some 1000m racing and I have an irs g series in my Toyota chaser.
    Anyone know where to look to find a 3.2 or lower crown wheel and pinion.
    I'll even buy a new one or anywhere that can make them?

  2. #2
    Arrogant wankeler Slides's Avatar
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    What engine/box/tyre combo needs lower than 3.2 for a standing k? For the cost of 1 off c&p might be better spent on a box with better ratio spread or rotating bits that can spin harder?

  3. #3
    Genius T's Avatar
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    3.5 is the lowest you will get in aus, however if you are prepaired to deal over the fence (america) they had a model of 4x2 hilux from the early to mid 80's that ran a 3.2 - but even that is rare to find now - plus you'll get murdered on freight.
    Might be one of the aftermarket diff places that advertises on ebay etc may do that ratio.

    I have a 3.7 with reshimmed lsd sitting in the shed though..........

  4. #4
    Genius T's Avatar
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    sorry correction - us spe hilux rn50 came with a 3.07 diff - code g662
    if you can use toyodiy you could find the part number & get a price from toyota

  5. #5
    anyone? MRMOPARMAN's Avatar
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    Ma70 supra turbo A had a reasonably high ratio. Good luck finding one though
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  6. #6
    Registered User Mc Juicy Hairy Balls's Avatar
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    Leave the diff change the box to a tr6060 gears are tall

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    Looking to change to th400 hence the low gearing.

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    Fuck me weren't wrong about a gearbox being cheaper.
    This is a 3.07 ratio


  9. #9
    あなたの母親の肛門 Shifty's Avatar
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    Factory 3.2 is rare, it was available as a TRD / Group A part if I recall.

    Can't speak for the one above that someone mentioned being 3.2 in a Hilux somewhere in the US.

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    Talking to a guy in the us at the moment that can hook me up with a 3.07 ratio.

  11. #11
    Opinionated Cunt perthdrivers.txt's Avatar
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    Quote Originally Posted by Skippy View Post
    Fuck me weren't wrong about a gearbox being cheaper.
    This is a 3.07 ratio
    Thats the whole carrier, not what you want

    Final Gear Kit is what youre after, part number starts with 41201

    Ive bought two of them, come with crown, pinion, bolts and sometimes pinion bearing, if they are still available from T they would be around $700-800 from Northshore Toyota NZ or Amayama

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  12. #12
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    TH400 wouldn't it be easier to just by a gear venders?
    Quote Originally Posted by Lord_fahrquhar View Post
    The au put the fucking tunnel in with the bullbar. Even Chuck Norris respects the ability of the au coon.

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    That fucks that plan.


  14. #14
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    Quote Originally Posted by perthdrivers.txt View Post
    Thats the whole carrier, not what you want

    Final Gear Kit is what youre after, part number starts with 41201

    Ive bought two of them, come with crown, pinion, bolts and sometimes pinion bearing, if they are still available from T they would be around $700-800 from Northshore Toyota NZ or Amayama
    Thanks
    That explained why it was so much.

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