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Thread: F series diff

  1. #1
    Junior Member Backyard Mechanic SIKTOY's Avatar
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    Default F series diff

    How strong are they compared to the g series
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  2. #2
    Yep they look great Carport Converter gianttomato's Avatar
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    Default Re: F series diff

    Less strong.

  3. #3
    Toymods Net Nazi Too Much Toyota river's Avatar
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    Default Re: F series diff

    Hi,

    But stronger than the T series.

    seeyuzz
    river
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  4. #4
    Building Corollas Chief Engine Builder Cuzzo's Avatar
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    Default Re: F series diff

    How many spline is the axels in a f-serieS?
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  5. #5
    Junior Member Backyard Mechanic SIKTOY's Avatar
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    Default Re: F series diff

    Quote Originally Posted by gianttomato
    Less strong.
    duhh but are they strong enough to put behind a 1G
    reputation is nothing knowledge is everything
    RA23 1GGTE 12.3@110mph
    1980 RA40 now getting a 1G with new picsLOOK
    Don't argue with an IDIOT.He will bring you down to his level and then beat you with experience!

  6. #6
    Toymods Net Nazi Too Much Toyota river's Avatar
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    Default Re: F series diff

    Hi,

    Within reason. How much power are you thinking of putting out?

    seeyuzz
    river
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  7. #7
    Junior Member Backyard Mechanic SIKTOY's Avatar
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    Default Re: F series diff

    about 200-250kw
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    1980 RA40 now getting a 1G with new picsLOOK
    Don't argue with an IDIOT.He will bring you down to his level and then beat you with experience!

  8. #8
    Toymods Net Nazi Too Much Toyota river's Avatar
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    Default Re: F series diff

    Hi,

    If it was me, I'd be using a G-series.

    An F-series won't last too long behind that power, especially if you drop the clutch and give it a hard time.

    seeyuzz
    river
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  9. #9
    Is a Chief Engine Builder wilbo666's Avatar
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    Default Re: F series diff

    Quote Originally Posted by river
    An F-series won't last too long behind that power, especially if you drop the clutch and give it a hard time.

    seeyuzz
    river
    Norbie has borken how many F series diffs?

    Zero....

    He has / had a large collection of W5X gearbox parts But the F series seems upto the task....

    He does have a truetrack LSD tho

    Cheers
    Wilbo

  10. #10
    Junior Member Backyard Mechanic SIKTOY's Avatar
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    Default Re: F series diff

    Thanks wilbo
    I just sent norbie a pm about it

    Cheers
    Ben
    reputation is nothing knowledge is everything
    RA23 1GGTE 12.3@110mph
    1980 RA40 now getting a 1G with new picsLOOK
    Don't argue with an IDIOT.He will bring you down to his level and then beat you with experience!

  11. #11
    7M-BHGE Automotive Encyclopaedia
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    Default Re: F series diff

    F Series crown gear is 7.5"
    G Series crown gear is 8"

    Both are easy to get LSDs.
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  12. #12
    Is a Chief Engine Builder wilbo666's Avatar
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    Default Re: F series diff

    Quote Originally Posted by SIKTOY
    Thanks wilbo
    I just sent norbie a pm about it

    Cheers
    Ben
    Not much to tell, his is IRS tho. True track center, 3.58 ratio.

    I'm not saying that a G series isn't for you...but I'm pretty sure an F series is OK for 200rwkw...

    Cheers
    Wilbo

  13. #13
    Junior Member Automotive Encyclopaedia SillyCarS's Avatar
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    Default Re: F series diff

    hey,

    im aiming for those figures out of a turbo'd 18rg and ive gone with the g series

    hope that helps

    craig

  14. #14
    potato Automotive Encyclopaedia joecoolmk2's Avatar
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    Default Re: F series diff

    i'm gonna be using an F behind a 1UZ
    beer me!

  15. #15
    Rest in Peace Conversion King ViPeR_NiPPleX's Avatar
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    Default Re: F series diff

    Does anyone know of anyone who has broken an F series? I think they are underrated.

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