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Replacing the Model 18 Intermediate Shaft

Discussion in 'Early CJ5 and CJ6 Tech' started by unclebill, Mar 5, 2010.

  1. Mar 6, 2010
    EricM

    EricM Active Member

    Southern California
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    Does anyone here run the Advance Adapter tapered bearing?
     
  2. Mar 6, 2010
    unclebill

    unclebill Banned

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    do all of the 1 1/4" TCases have the loose needle bearings?
     
  3. Mar 6, 2010
    Patrick

    Patrick Super Moderator Staff Member

    Los Alamos, NM
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    Yes.
     
  4. Mar 6, 2010
    Patrick

    Patrick Super Moderator Staff Member

    Los Alamos, NM
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    Well, I will be in a few weeks.;)
    Transfer case is done, waiting on the OD to get back from Herm..
     
  5. Mar 8, 2010
    jwjeep60

    jwjeep60 in process

    Sedalia Mo.
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    Apr 8, 2008
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    i dropped the case last spring for an intermediate shaft / clutch / transfer-case rebuild. if i were to replace only the intermediate shaft i would go in-place on a nice sunny day, here are some pics i took, i do not know the in-place process but hopefully someone can go in-depth on the process because it would be nice to know...
    [​IMG]
    [​IMG]
    [​IMG]
    remember that removing the t-case requires opening the trans and tying the main shaft to the front of the trans and there is the input gear to remove inside the t-case along with the 5th trans to t-case bolt on the passenger side of your trans spacer.
     
  6. Mar 9, 2010
    unclebill

    unclebill Banned

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    i just spoke to herm.
    when i described what the symptoms are
    he told me it is probably endplay in the back of the transfer case.
     
  7. Mar 9, 2010
    Patrick

    Patrick Super Moderator Staff Member

    Los Alamos, NM
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    Do you have a dial indicator?
    Might as well pull the case and rebuild it.
     
  8. Mar 9, 2010
    Howard Eisenhauer

    Howard Eisenhauer Super Moderator Staff Member

    Tantallon, Nova...
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    :iagree:

    In the long run you'll save yourself lots of time + $$$ by pulling the whole thing & doing it "right". if the end play is off then who knows what else is going on in there :rofl:

    Just because I got the pics :D

    [​IMG]

    [​IMG]

    [​IMG]

    [​IMG]

    [​IMG]

    H.
     
  9. Mar 10, 2010
    unclebill

    unclebill Banned

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    i am not going to save a dime.
    a mechanic with the proper tools and knowledge is going to do it.
    maybe next year......
     
  10. Mar 10, 2010
    nickmil

    nickmil In mothballs.

    Happy Valley, OR
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    Sure you will! It's cheaper in the long run to do it once vs. doing it twice...:)
     
  11. Mar 10, 2010
    Howard Eisenhauer

    Howard Eisenhauer Super Moderator Staff Member

    Tantallon, Nova...
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    With the exception of the $20 dial indicator I can guarantee you the mechanic won't be using any tools on this that you don't already own. These things really are silly simple, check out Rick Stivers re-build guide-

    http://www.willystech.com/wt/Model18TCase/Model18TransferCase.html

    There's even a video available, someone here might be able to loan you a copy.

    H.
     
  12. Mar 10, 2010
    Thunderpig

    Thunderpig Member

    Parachute, Colorado
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    Unclebill,

    Hey I encourage you to do it yourself. I have ZERO mechanic knowledge prior to getting my Jeep. I have rebuilt the transfer case, transmission, and engine, and all work great. Just follow the instructions that Howard Eisenhauer posted. It's not hard, but you should take your time, and be sure to do a thourough cleaning of all parts before reassembly.
    You will surprise yourself and you will have the confidence to rebuild it next time too (if ever).
    If you do, be sure to secure the output on the transmission before you pull the transfer case or you'll have to rebuild the transmission too.
     
  13. Mar 12, 2010
    unclebill

    unclebill Banned

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    i might be able to do it in a buddies barn.
    yep pull it and rebuild.
     
  14. Mar 22, 2010
    Southpaw

    Southpaw New Member

    Bakersfield, Ca.
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    Regarding the Advanced Adapters intermediate gear kit with tapered roller bearings, I have a friend running it in his Dana 18 and has had no problems with it.

    He doesn't put a lot of miles on his Jeep, but he wheels it hard when he does. He likes the Dusy/Ershom Trail in California.
     
  15. Mar 22, 2010
    Tom in RI

    Tom in RI Member

    Rhode Island
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    Before you pull the transfer case be sure you read up on how to secure the insides of the transmission so that your tranny doesn't fall apart when you plll the T-case.
    Lots of guys...just like me.. learned how to rebuild a transmission after improperly pulling the transfer case.
    If you don't spend the 5 minutes it takes to secure the transmission gears properly before pulling the T-case, a bunch of little needle bearings fall out of the trans.

    As everyone posted, you can do this yourself. The guides on the web like Rick Stivers will help a lot along with the FSM. You can also seal up all the bolts when you re-assemble it and you will have less leaking.

    Tom
     
  16. Mar 30, 2010
    unclebill

    unclebill Banned

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    just ordered the rebuild kit from herm
    while i was at it i got some anti rattle springs as well as the pivot pin and gaskets and stuff i forgot the names of already.
    $126 shipped.
    i sure like that herm guy.
    he is really nice!
     
  17. Mar 30, 2010
    Patrick

    Patrick Super Moderator Staff Member

    Los Alamos, NM
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    Yep, if a bit scatter brained once in a while.;)
    Got my overdrive back, and part of the shifter assembly.:D
     
  18. Mar 31, 2010
    unclebill

    unclebill Banned

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    oooh.....
     
  19. Mar 31, 2010
    jasonjp62

    jasonjp62 Member

    Pennsboro WV.
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    I found a quick way to really quiet my 18 down today. Took the top off, works wonders......lol
     
  20. Mar 31, 2010
    Daryl

    Daryl Sponsor

    Bonney Lake, WA
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    Or just turn up the radioR)
     

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