1. Registration trouble? Please use the "Contact Us" link at the bottom right corner of the page and your issue will be resolved.
    Dismiss Notice

Dana 27 Spider Gears

Discussion in 'Early CJ5 and CJ6 Tech' started by jeepstar, Jan 4, 2017.

  1. Jan 4, 2017
    jeepstar

    jeepstar Well-Known Member 2024 Sponsor 2023 Sponsor 2022 Sponsor

    Sheboygan
    Joined:
    Jun 28, 2006
    Messages:
    2,754
    Alright guys. I am going to buy a set of spider gears for my Dana 27. I've searched all over the web for the cheapest price and the most expensive price, and they all seem to be pretty comparable.
    They must all be the same, because they don't ask for any gearing type. Any Dana 27 spider gear will work for a Dana 27 right?
     
  2. Jan 4, 2017
    Alan F

    Alan F Sponsor

    SE TX
    Joined:
    Jun 16, 2015
    Messages:
    168
    Just my two bits but I purchased a set of good used spider gears from Herm for about half what repro's cost. I believe OmixADA supplies the repros. At the time the best price was RockAuto.
     
  3. Jan 4, 2017
    jeepstar

    jeepstar Well-Known Member 2024 Sponsor 2023 Sponsor 2022 Sponsor

    Sheboygan
    Joined:
    Jun 28, 2006
    Messages:
    2,754
    But the spider gears are the same across the board? I dont need to be worried about gearing?
     
  4. Jan 4, 2017
    jpflat2a

    jpflat2a what's that noise?

    Hermosa, SD
    Joined:
    Jul 30, 2003
    Messages:
    8,513
    Axle gear ratio is not affected.
    Open differential (stock) model 25/27 spiders gears are the same.
    Except for the Powr-Lok limited slip.
    The Jeep p/n is 926544 if you want to search.
    I'd avoid the offshore junk but to each his own.
     
  5. Jan 5, 2017
    Jrobz23

    Jrobz23 Member

    Northern, WI
    Joined:
    Oct 3, 2016
    Messages:
    942
    I have a couple whole units. Whst are you looking for?
     
  6. Jan 5, 2017
    jeepstar

    jeepstar Well-Known Member 2024 Sponsor 2023 Sponsor 2022 Sponsor

    Sheboygan
    Joined:
    Jun 28, 2006
    Messages:
    2,754
    The whole unit.
     
  7. Jan 5, 2017
    Jrobz23

    Jrobz23 Member

    Northern, WI
    Joined:
    Oct 3, 2016
    Messages:
    942
    What gear ratio? D30 or a 27/25?
     
  8. Jan 5, 2017
    jeepstar

    jeepstar Well-Known Member 2024 Sponsor 2023 Sponsor 2022 Sponsor

    Sheboygan
    Joined:
    Jun 28, 2006
    Messages:
    2,754
    I have a dana 27 front axle. Dont know the gear ratio.
     
  9. Jan 5, 2017
    Jrobz23

    Jrobz23 Member

    Northern, WI
    Joined:
    Oct 3, 2016
    Messages:
    942
    Use a silver pencil and mark a line on the yoke and a rotor. Spin the rotor 2x and count the rotations on the yoke and divide by 2. That'll give ya an idea of the ratio. Most F134s seem to be 5.38, but I think the later ones might have more mild gearing.

    I have my old D25. Working take out. I think I have a D30 with 4.27s too. "I'd have to check the pile" lol

    I'd recommend against using used gears, specially on something this old. They may never lash right. I tried it in a much newer axle, and ended up needing R&P anyway. Get a whole unit of the right gears if you can.
     
  10. Jan 5, 2017
    jzeber

    jzeber Well-Known Member 2022 Sponsor

    Morgan Hill, Ca
    Joined:
    Nov 15, 2003
    Messages:
    3,322
    I have the spider gears I took out when I put in the Lock right. Would that help?
    20170105_181204.jpg
     
  11. Jan 5, 2017
    Daryl

    Daryl Sponsor

    Bonney Lake, WA
    Joined:
    May 25, 2006
    Messages:
    2,871
    Assuming that you have the cover off, the gear ratio is stamped right on the side of the ring gear. Number of teeth on the ring divided by the number on the pinion.
     
  12. Jan 5, 2017
    wheelie

    wheelie beeg dummy 2024 Sponsor 2023 Sponsor

    York, PA
    Joined:
    Mar 6, 2004
    Messages:
    4,491
    I think the bigger ones with the internal splines to match the axle shaft are called side gears and the other two are the spiders.
     
  13. Jan 6, 2017
    jeepstar

    jeepstar Well-Known Member 2024 Sponsor 2023 Sponsor 2022 Sponsor

    Sheboygan
    Joined:
    Jun 28, 2006
    Messages:
    2,754
    spider gears.PNG
    the two smaller gears and washers are what I need, and the vertical pin as well. here is a pic from my thread "4wd is broken"
     
    Last edited: Jan 6, 2017
  14. Jan 6, 2017
    jzeber

    jzeber Well-Known Member 2022 Sponsor

    Morgan Hill, Ca
    Joined:
    Nov 15, 2003
    Messages:
    3,322
    I only have the gears not the pin. Send me a PM if you think you can use them.
     
  15. Jan 6, 2017
    jeepstar

    jeepstar Well-Known Member 2024 Sponsor 2023 Sponsor 2022 Sponsor

    Sheboygan
    Joined:
    Jun 28, 2006
    Messages:
    2,754
    pm sent
     
  16. Jan 6, 2017
    jeepstar

    jeepstar Well-Known Member 2024 Sponsor 2023 Sponsor 2022 Sponsor

    Sheboygan
    Joined:
    Jun 28, 2006
    Messages:
    2,754
    guys, I have a set of spider gears on the way!!! woo hoo!!! (thanks jzeber!)

    now...how do I get that pin that exploded in my picture above?
     
  17. Jan 7, 2017
    Jrobz23

    Jrobz23 Member

    Northern, WI
    Joined:
    Oct 3, 2016
    Messages:
    942
    Yukon may have a D27 carrier pin
     
  18. Jan 18, 2017
    jeepstar

    jeepstar Well-Known Member 2024 Sponsor 2023 Sponsor 2022 Sponsor

    Sheboygan
    Joined:
    Jun 28, 2006
    Messages:
    2,754
  19. Jan 20, 2017
    Jrobz23

    Jrobz23 Member

    Northern, WI
    Joined:
    Oct 3, 2016
    Messages:
    942
    Sorry, was traveling for work. Sometimes new ends up being cheapest in the long and short runs. Swapping out just the spider gears should be pretty easy, just be sure to clean the housing well as there will metal in there after the blow up.
     
  20. Jan 21, 2017
    eti engineer

    eti engineer Member

    Great Central...
    Joined:
    Jan 24, 2015
    Messages:
    601
    My '62 F-134 has 4.27 gears in it. Dana 44 Powr-Lok in back and Dana 25 regular diff in front.
     
New Posts