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Fj80 into fj60

Discussion in '60-Series Wagons' started by EarthX, Aug 29, 2006.

  1. EarthX

    EarthX Owner of Earth Exploration Technologies

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    Does anyone know if it is possible to swap a high pinion third out of an 94 fj80 into a front axle of a '85 fj80?:cheers:
     
  2. kevinmrowland

    kevinmrowland Forum Lifer

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    Wrong size. (8"v.9"? or something like that I was told)
     
  3. ClemsonCruiser

    ClemsonCruiser

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    you can take the rear third out of an 80 and swap it into the front of your 60......... just can't take the front 3rd it is an 8" vs 9.5"
     
  4. EarthX

    EarthX Owner of Earth Exploration Technologies

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    Thanks for the help. I was hope to put a high pinion in to help drivline issuses. :cheers:
     
  5. lowtideride

    lowtideride

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    Huh, Why does the Ring Gear size matter? I always thought ya could, Its just a weaker set up....even though there is one under my 62;)
     
  6. EarthX

    EarthX Owner of Earth Exploration Technologies

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    So then maybe you can? What other parts are needed?
     
  7. lowtideride

    lowtideride

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    Ya got me man...my fj62 sits on top of an 80 series frame axles and drivetrain.
    I know mini truck users are always after them....
     
  8. ClemsonCruiser

    ClemsonCruiser

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    can't be done, the front 3rd member of an 80 is smaller than that of the 60 3rd member.................. but I could be wrong, I just know when I was looking to throw and 80's elocker 3rd in the front of my 62 I was told repeatedly that I had to use the rear 3rd of an 80 and not the front
     
  9. ridgerunner

    ridgerunner

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    You'd need to swap the whole axle housing, and then figure out what you're going to do about hysteer and your 5" wider front axle.

    Have you rotated the front axle? Edit: You have. What sort of driveline issues?
     
  10. EarthX

    EarthX Owner of Earth Exploration Technologies

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    Well my problem is the I have a 350 with a supercharger and an automatic transmition. And due to the height and flex I need a double cardon front shaft. But becasue the tight space near the automatic tranny I can only fit a very small double, and that keeps snaping.
     
  11. Tinker

    Tinker

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    Run a bigger pulley on the blower!
     
  12. Dynosoar

    Dynosoar Slightly Disturbed SILVER Star

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    Run the cardin shaft with the double at the pinion insted of the transfer case.

    Dynosoar

    (I do this with a V-8 350 and a turbo 400)
     
  13. ridgerunner

    ridgerunner

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    How big is a small double cardon? Who built the shaft?
     
  14. ridgerunner

    ridgerunner

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    How does that cancel out the movement of the tansfercase u-joint?

    My understanding of the theory behind the double cardon was that the pinion had a regular ujoint pointed directly at the transfer (and therefore no real movement) and the double cardon at the transfer then cancels itself out, giving no vibration. By switching the shaft around, you have one u-joint operating at a steep angle and no angle at the pinion ujoint, causing vibration at the transfercase end. There simply wouldn't be any need for a double cardon at the pinion. :confused: I apologize for lack of technical terms.
     
  15. EarthX

    EarthX Owner of Earth Exploration Technologies

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    I think you are right on. That would solve my clearence issue BUT I would loose the flex of the double cardon.
    My drive shafts were built by tom woods(whom Ill never use again) But i belive the are a 1350? Does that sound right?
     
  16. ridgerunner

    ridgerunner

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    So is your thinking of using the high pinion diff that you could use a regular shaft and get rid of the double cardan?

    1350 sounds right. Personally, I think I would call Jesse at Highangle to see if he could do any better than Tom Woods.
     
  17. EarthX

    EarthX Owner of Earth Exploration Technologies

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    That is about what I was thinking. My other thought was just to swap the whole axle and not worry about it. Ever heard of it being done?
    Ill have to call highangle and see what he can offer. :cheers:
     
  18. ridgerunner

    ridgerunner

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    People here have swapped 80 axles into 40s, 55, 60s before. That could still be a viable route, but more $$$.

    Good luck!
     
  19. EarthX

    EarthX Owner of Earth Exploration Technologies

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    Yeah, ill need some luck to find a donor 80.
     
  20. lowtideride

    lowtideride

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    1350's are weaker and have less flex than an cruiser u-joint. No chance on getting a 81-84 fj60 drive shaft with doubleC ?