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Dana 18 Intermediate Gear

Discussion in 'Builds and Fabricators Forum' started by Jeepsterjim, Feb 24, 2021.

  1. Feb 24, 2021
    Jeepsterjim

    Jeepsterjim Member

    Lincoln, CA
    Joined:
    Apr 25, 2019
    Messages:
    401
    Bought the A.A. tapered bearing upgrade for my D-18 X-fer intermediate gear and sent it off to Mc Ruff for the machine work. It came back today and the mod looks GREAT! This upgrade should strengthen the X-fer a little plus curb the famous x-fer howl a lot. I took a few pics of the mod.
    Thanks Mcruff, great work!.


    upload_2021-2-24_18-54-2.png

    upload_2021-2-24_18-55-34.png
     
  2. Feb 25, 2021
    jeep peep69

    jeep peep69 Member

    redding ca.
    Joined:
    Dec 8, 2007
    Messages:
    619
    He just did mine also excellent work and a reasonable price.
     
    fhoehle likes this.
  3. Feb 25, 2021
    Jeepsterjim

    Jeepsterjim Member

    Lincoln, CA
    Joined:
    Apr 25, 2019
    Messages:
    401
    Very reasonable and good work. Hey, if you get down my way, please stop by, Lincoln, ca
     
  4. Feb 25, 2021
    givemethewillys

    givemethewillys Been here since sparky ran it. 2022 Sponsor

    New Kent, VA
    Joined:
    Jun 21, 2005
    Messages:
    1,998
    Y'all have me wanting to take my d-18 back apart and get the kit, while it's easy to do.
     
  5. Feb 25, 2021
    johneyboy03

    johneyboy03 The green beast

    Quebec, Canada
    Joined:
    Jan 15, 2011
    Messages:
    2,115
    Had the same set-up on my dana 20. Way quieter than before....hold the gear tight in place. Solve the biggest issus of those transfert case.

    Also make re-assembling realy easier.
     
  6. Feb 25, 2021
    Steve Wilkerson

    Steve Wilkerson New Member

    Southern Illinois
    Joined:
    May 9, 2020
    Messages:
    16
    My D18 rattles and howls. Worse at cold temps, hardly at all when it's warmer. So, if I have to rebuild, why not change to the taper bearings? Seems smart to me. I am unable to view the pictures, says (you do not have permission....). So, what's involved in the conversion? They bore out the inside of the gear I suppose?
     
  7. Feb 25, 2021
    Mr Vaughan

    Mr Vaughan

    what does this mod do?

    what's the advantage of tapered bearings?
     
  8. Feb 25, 2021
    Jeepsterjim

    Jeepsterjim Member

    Lincoln, CA
    Joined:
    Apr 25, 2019
    Messages:
    401
    Once you purchase Advance adapter's X-fer bearing up-grade, the intermediate gear will need to be bored out for the cups. Mcruff does the machine work.
     
    Steve Wilkerson likes this.
  9. Feb 25, 2021
    Jeepsterjim

    Jeepsterjim Member

    Lincoln, CA
    Joined:
    Apr 25, 2019
    Messages:
    401
    tapered bearings eliminates the 101 needle bearings and, adds strength, thus a stronger X-fer case. ALSO, with the new taper bearing upgrade, one can adjust the preload better and the famous X-fer case howl is greatly reduced. IF your X-fer needs rebuilding, it's worth the cost.
     
  10. Feb 25, 2021
    '74Renegade

    '74Renegade Active Member

    Fair Oaks, CA
    Joined:
    Sep 1, 2005
    Messages:
    1,275
    I've never heard of this being done to the Dana 20, always thought it was only for the 18. I "think" I have a teralow kit in route and if this is essential for the 20 I'll do it at the same time.
     
  11. Feb 26, 2021
    Norcal69

    Norcal69 Out of the box thinker 2024 Sponsor 2023 Sponsor 2022 Sponsor

    Northern California
    Joined:
    Sep 6, 2014
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    3,549
    When I had my terra low D20 built I sprung for the roller bearing intermediate. It's really not necessary with a D20...... but when your building the ultimate D20 you kinda get caught up in things......
     
    '74Renegade likes this.
  12. Feb 26, 2021
    johneyboy03

    johneyboy03 The green beast

    Quebec, Canada
    Joined:
    Jan 15, 2011
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    2,115
    The kit work with both d18 and d20 transfert case.

    Even the dana 20 i recommend it. Under heavy demand the trust washer that hold the intermediate gear will worn out causing the gear to move back and forth, misaligned the gear causing them to broke. With the intermadiate gear shaft kit, it will stay where is suppose to stay.
     
    '74Renegade and 47v6 like this.
  13. Feb 26, 2021
    givemethewillys

    givemethewillys Been here since sparky ran it. 2022 Sponsor

    New Kent, VA
    Joined:
    Jun 21, 2005
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    1,998
    The dana 20 doesn't put the same side loads on the intermediate shaft as the 18 does, so it doesn't wear as severely. I guess the tapered bearings couldn't hurt, it's only money!
     
    '74Renegade likes this.
  14. Feb 26, 2021
    johneyboy03

    johneyboy03 The green beast

    Quebec, Canada
    Joined:
    Jan 15, 2011
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    i had 2 dana 20 transfert that as suffer from the trust washer worning out.

    since i have the tapered roller bearing it never failed me
     
    47v6 and '74Renegade like this.
  15. Feb 26, 2021
    '74Renegade

    '74Renegade Active Member

    Fair Oaks, CA
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    Sep 1, 2005
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    Well, I'm going to be in there anyway. I'd hate to get it apart and realize it needs it.
     
  16. Feb 26, 2021
    Mcruff

    Mcruff Earlycj5 Machinist

    Albertville, AL
    Joined:
    Sep 22, 2002
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    5,349
    Thanks guys! Just sorry I have been so slow lately, seems like work and life have slowed me down an awful lot in the last 2 months. Seems like one minor disaster after another and with overtime at work it’s been hard to get anything done except on Saturday evening and Sunday. I have one on my mill right now to finish and mail either Saturday or Monday.
     
    jeep peep69, johneyboy03 and Fireball like this.
  17. Feb 26, 2021
    givemethewillys

    givemethewillys Been here since sparky ran it. 2022 Sponsor

    New Kent, VA
    Joined:
    Jun 21, 2005
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    1,998
    It's all good Mcruff, we appreciate the work you do for us early CJ-5 folk!
     
  18. Feb 26, 2021
    givemethewillys

    givemethewillys Been here since sparky ran it. 2022 Sponsor

    New Kent, VA
    Joined:
    Jun 21, 2005
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    I've been eying my stuff for the past few days thinking the same thing. I put it all back together, but reused the Intermediate shaft because it looked practically brand new. But now, I'm thinking I might take it all back apart while it's accessible and fix the flaw, while the parts are still being made and guys like Mcruff still do the machine work.
     
  19. Feb 26, 2021
    jpflat2a

    jpflat2a what's that noise?

    Hermosa, SD
    Joined:
    Jul 30, 2003
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    8,513
    Intermediate gears can be changed/swapped out with transfer case in chassis.
    Not necessary to completely disassemble.
     
    '74Renegade and Buildflycrash like this.
  20. Feb 26, 2021
    '74Renegade

    '74Renegade Active Member

    Fair Oaks, CA
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    Exactly!
     
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