axels from 85 pick up

Discussion in '40- & 55-Series Tech' started by badass40, Oct 25, 2005.

  1. badass40

    badass40

    Messages:
    64
    Likes Received:
    0
    Joined:
    Oct 24, 2005
    found a set of axels off a 85 toyota pickup. would I be able to use those on my 77 fj40. if so i'm going to get them cut and turned. they have 4'11 's .any other info would be great.
     
  2. Mace

    Mace rock scientist.. Staff Member s-Moderator

    Messages:
    21,654
    Likes Received:
    2,093
    Joined:
    Feb 17, 2002
    Location:
    Las Vegas
    Use the disk brakes off of them on your front 77 axle


    The front axle's spring pads are spaced too far apart and the rear axle is centered. You planning on changing tcases as well???
     
  3. stinkyfj60

    stinkyfj60

    Messages:
    1,330
    Likes Received:
    2,575
    Joined:
    Apr 22, 2004
    Location:
    Roodepoort, South Africa
    Are you after extra width or are you chaning to a centered reat driveshaft? I would keep the 40 axles and use the birfs and hubs and such on your axles. There is a recipe somewhere here I think if you do a search to make a centered rear using the cruisers diff and the mini's tubes. If you want wider axles why not some out of a FJ60?
     
  4. Mace

    Mace rock scientist.. Staff Member s-Moderator

    Messages:
    21,654
    Likes Received:
    2,093
    Joined:
    Feb 17, 2002
    Location:
    Las Vegas
    Width of a mini is the same as a 40..
     
  5. stinkyfj60

    stinkyfj60

    Messages:
    1,330
    Likes Received:
    2,575
    Joined:
    Apr 22, 2004
    Location:
    Roodepoort, South Africa
    AHhhhhhhhhhhhh, I learned something today :D I thought they were a bit wider, but that make sense when thinking about it.

    In that case, I would DEFINETLY stick with the 40 axles....
     
  6. bandy rooster

    bandy rooster

    Messages:
    1,935
    Likes Received:
    3
    Joined:
    Aug 11, 2005
    Location:
    Sunny South
    which birfs are stronger/weaker


    the 40 or the mini?
     
  7. cruiser_guy

    cruiser_guy

    Messages:
    11,197
    Likes Received:
    35
    Joined:
    Jan 20, 2003
    Location:
    Wherever the truck stops!!
    Mini birfs are stronger but the inner axles from the mini ARE different from the '40 series Cruiser. Check out "Tech Trivia" for the inner axle length differences.
     
  8. Mace

    Mace rock scientist.. Staff Member s-Moderator

    Messages:
    21,654
    Likes Received:
    2,093
    Joined:
    Feb 17, 2002
    Location:
    Las Vegas
    Long side mini = Long side FJ60

    Short side mini= dam short and only mini stuff. Shorter than a 40 or a 60

    Mini birfs are stronger but not that much stronger than the 77 unit.
     
  9. Poser

    Poser Oh...Durka Durka Durka. s-Moderator Supporting Vendor

    Messages:
    20,404
    Media:
    17
    Albums:
    1
    Likes Received:
    834
    Joined:
    Oct 1, 2003
    Location:
    MN

    " Width of a mini is the same as a 40.."




    Jason...


    Please help me with all of this...
     
  10. stinkyfj60

    stinkyfj60

    Messages:
    1,330
    Likes Received:
    2,575
    Joined:
    Apr 22, 2004
    Location:
    Roodepoort, South Africa
    I think thats why I had in my head they were slightly wider then the 40 axle, the long side being the same as the FJ60s.
     
  11. woody

    woody unhelpful spotter Staff Member Admin

    Messages:
    10,910
    Media:
    317
    Albums:
    8
    Likes Received:
    2,861
    Joined:
    Jan 15, 2002
    Location:
    Toquerville UT
    85-older minitruck = 55" WTW
    FJ40/55 = 55" WTW

    86-newer minitruck = 58" WTW
    FJ60/62 = 58" WTW

    (round numbers, but close enuf)

    The mini front diff is further offset to the passenger side, and the spring packs of a FJ40 install will land "on" the front diff, forcing you to outboard the springs, much like a FJ60 front axle install does.

    http://www.ih8mud.com/techtrivia.php for some shaft lengths and interchangability info....

    My rear axle uses a FJ40 center section grafted to 84ish minitruck outers, and uses 84ish mini shafts...width is the same as the stock FJ40 front.

    inner axles are all 30-spline at the side gear, 27-spline at the birf, and the birf is 30-spline at the lockout

    The 85 front axle does offer some upgrades to your current 77 tho....bigger/stronger birfs (slightly, but why not...) - large pattern knuckles for strength and more hi-steer options down the road, and aisin lockouts. My 77 front axle runs the same mini-upgrades. (76-78 front FJ40/55 disc axles are morphs with small pattern knuckles and smaller diameter/longer shaft birfields...."most" of the balance is the same....)
     
  1. This site uses cookies to help personalise content, tailor your experience and to keep you logged in if you register.
    By continuing to use this site, you are consenting to our use of cookies.