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Thanks all , its on / need help getting dana 18 overdrive on

Discussion in 'Early CJ5 and CJ6 Tech' started by Jim Mccarty, Jun 1, 2004.

  1. Jun 1, 2004
    Jim Mccarty

    Jim Mccarty Member

    pensacola florida
    Joined:
    Sep 10, 2003
    Messages:
    51
    Hello all , I'm in the middle of doing my sm\420 conversion but I cant seem to get the overdrive back on. Is there a special way or tool or something to get it back on? I already put the main gear up and torqued to specs , put the lock washer in , put the lock washer retainer ring in . But now I can not get the over drive to go back on. Any help or instuctions on how to get it back on from here would be greatly appreciated.

    Just wanted to say thanks to all for the help . I finally got it with alot of assembly lube and a 2lb mallet. I guess during this whole evalution I just never got it straight and wacked it right all at the same time. Again thanks to all for the info and experience. Now I'm on to getting all the shifters and plates back in.
     
  2. Jun 1, 2004
    Ranger_Dick

    Ranger_Dick New Member

    Woodside California
    Joined:
    Jan 27, 2004
    Messages:
    3
    According to the Advance adapters instructions for the saturn overdrive, try elevating both rear wheels and make sure the xfer case and gear rotates freely. Then, align gasket, guide oil tube, shift link and overdrive case into positon. a slight rotation of the unit may be necessary to mesh gears. install bolts with lockwashers and tighten to 30 ft/lbs. The 3 steel keys mus interlock with brass syncro rings. If keys do not line up properly, you will find a 1/4 inch gap tween the xfer case and overdrive housing. hope this helps
     
  3. Jun 1, 2004
    Jim Wiseman

    Jim Wiseman New Member

    Palo Alto, CA
    Joined:
    Dec 3, 2002
    Messages:
    36
    There is a bearing at the end of the sun gear that is sometimes a bear to press into the planetary gears. That was the source of my swearing. Everything looked good, the planetary gears were in the D18 case, lock washer and cazy circlip in place but it just wouldn't go together. I finally measured the bearing and saw there was a compression of that weird looking cup around the bearing. So, I slathered assembly lub, aligned things, and pressed as hard as I could (cut out that laughing!). I was finally able to get the long bolts to start threading and I carefully tightened them, moving the overdrive in as parallel to the D18 as I could measure. It worked!
     
  4. Jun 1, 2004
    Project71-5

    Project71-5 BACON

    Gypsum, CO
    Joined:
    Sep 24, 2002
    Messages:
    888
    Jim is right. That bearing that presses into the planetary is a bear to get started. I get mine started and aligned the best I can by hand and then beat on the OD with a rubber mallet. This may not be recommended but I have had no problems :)
     
  5. Jun 1, 2004
    Glenn

    Glenn Kinda grumpy old man Staff Member

    Apopka, Fl
    Joined:
    Sep 21, 2002
    Messages:
    9,364
    I had the same trouble, mainly aligning the bearing/cup. Found out I was holding the outer case up too high and it was cocked. After that it went right in, had to draw it just a bit with the bolts.
     
  6. Jun 1, 2004
    Jim Mccarty

    Jim Mccarty Member

    pensacola florida
    Joined:
    Sep 10, 2003
    Messages:
    51
    Thanks guys ill give it try again in the morning.
     
  7. Jun 2, 2004
    Jim Mccarty

    Jim Mccarty Member

    pensacola florida
    Joined:
    Sep 10, 2003
    Messages:
    51
    Well i got it on this morning . What a pain. Just need to hook up linkage and cut down my driveshafts and ill be ready for a test run with new sm420...
     
  8. Jun 2, 2004
    Project71-5

    Project71-5 BACON

    Gypsum, CO
    Joined:
    Sep 24, 2002
    Messages:
    888
    Man, I'm jealous!! :) Gonna wait until the winter when I pull the body off to put mine in :twisted:
     
  9. Jun 2, 2004
    blevisay

    blevisay Oh Noooooooooooooooo! Staff Member

    Portland Tn.
    Joined:
    Sep 20, 2002
    Messages:
    3,589
    Joe I think you need a Muncie.........
     
  10. Jun 2, 2004
    Project71-5

    Project71-5 BACON

    Gypsum, CO
    Joined:
    Sep 24, 2002
    Messages:
    888
    Okay Billy, I know Muncie is a brand but what are talking bout :oops: :rofl: Isn't a muncie a car tranny??
     
  11. Jun 2, 2004
    sparky

    sparky done Staff Member Founder

    Toowoomba, QLD
    Joined:
    Sep 20, 2002
    Messages:
    9,067
    SM420/465 are Muncie's.
     
  12. Jun 2, 2004
    sparky

    sparky done Staff Member Founder

    Toowoomba, QLD
    Joined:
    Sep 20, 2002
    Messages:
    9,067
    T90 etc. is Borg Warner
     
  13. Jun 2, 2004
    Project71-5

    Project71-5 BACON

    Gypsum, CO
    Joined:
    Sep 24, 2002
    Messages:
    888
    Sparky comes to the rescue once again :D
     
  14. Jun 2, 2004
    sparky

    sparky done Staff Member Founder

    Toowoomba, QLD
    Joined:
    Sep 20, 2002
    Messages:
    9,067
    I do what I can where and when I can. Fixing forums and answering transmission questions. ;)
     
  15. Jun 2, 2004
    Mcruff

    Mcruff Earlycj5 Machinist

    Albertville, AL
    Joined:
    Sep 22, 2002
    Messages:
    4,915
    Np 435, New Process (Chrysler), NV New Venture (Chrysler/GM)
    This should clarify all American made now.
     
  16. Jun 2, 2004
    sparky

    sparky done Staff Member Founder

    Toowoomba, QLD
    Joined:
    Sep 20, 2002
    Messages:
    9,067
    Thanks Mike! That too. ;)
     

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