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Thread: Diff / axle info needed.

  1. #1
    Senior Member
    Join Date
    Jul 2012
    Location
    Squaw Valley California (around fresno)
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    438

    Diff / axle info needed.

    I have a 1976 corolla with a 2 pinion, 6.38" diff. 4:10 ratio (stock). I want to know if a 1981 4 pinion, 6.38" diff with a 3:583 ratio will fit.
    Are the axle shaft splines the same?

  2. #2
    Senior Member
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    Aug 2012
    Location
    Montreal, Canada
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    111

    Re: Diff / axle info needed.

    All 8 bolt S type 6.38 use the same axle spline number and dia. It'll bolt on like stock no problem... only question I have is why? Why go from a nice 4.1 to a sloppy 3.58?

  3. #3
    Senior Member
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    Jul 2012
    Location
    Squaw Valley California (around fresno)
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    438

    Re: Diff / axle info needed.

    Currently I have a A40 auto in the place that my t50 will eventually fit. Freeway speeds on 185/60r14's revs a bit high for my liking. After I get the 5 speed in ill probably go back to the low ratio or something in between. Thanks for the info.

  4. #4
    Member
    Join Date
    Jan 2009
    Location
    Mauka
    Posts
    66

    Re: Diff / axle info needed.

    Pumpkin will fit but driveshaft flange may differ. Bolt up kitty corner with only two bolts (I have seen people race with slicks with only two bolts) or you can drill the other two holes. I drill my pumpkin flange with the driveshaft on and never had any problems. You might be lucky and it will match, I forget the year that it changed over.

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