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Dana 18 Cracked Mounting Tab

Discussion in 'Early CJ5 and CJ6 Tech' started by Peter Dorey, Sep 6, 2021.

  1. Peter Dorey

    Peter Dorey Member

    Hey All,

    I had a vibration on my CJ5 and noticed the output companion flange was loose, so I ordered a rebuild kit and pulled the transmission down.
    Unfortunately I found out that the mounting tab for the transfer case torque mount is busted. The rebuilder who put my Jeep together had the mount clamped on with a piece of scrap metal...

    Any thoughts? I could machine a mating piece and attempt to weld it, but I know the cast iron will probably crack at the HAZ eventually.
    Does anyone make replacement castings?

    [​IMG]
     
    Peter Dorey, Sep 6, 2021
    #1
    Rodney likes this.
  2. jeep2003

    jeep2003 Well-Known Member

    I think id just drill another hole out enough to get a nut on and call it good. Even if it needs to be a smaller bolt hole or slimmed down nut or you have to grind the case a bit to fit it
     
    jeep2003, Sep 6, 2021
    #2
    Walt Couch and Rodney like this.
  3. Peter Dorey

    Peter Dorey Member

    Jeep2003,

    That could work, it does look like there is enough room to get closer to the case. At this point, I can't see that hurting...
     
    Peter Dorey, Sep 6, 2021
    #3
    Rodney likes this.
  4. FinoCJ

    FinoCJ 1970 CJ5 Staff Member

    Is that torque mount on the front bearing cap? I would think there are quite a few of those floating around just waiting to be used in a case like this. Also, just to ask, does your torque mount mount to the cross-member with the round pad, or to the inside of the frame rails with angle bracket thingy?
     
    FinoCJ, Sep 6, 2021
    #4
  5. kenb

    kenb Cleverly disguised as a responsible adult

    I think an attempt to drill a new hole would lead to the rubber mount being forever strained since things wouldn't line up. Probably best to get a new casting. I'm sure someone has a spare lying around. Although this would require some teardown of the transfer case obviously.
     
    kenb, Sep 7, 2021
    #5
  6. Peter Dorey

    Peter Dorey Member

    FinoCJ,
    My transfer case uses a round pad with a single bolt directly through the crossmember.

    Kenb,
    I could modify the cross-member to realign the mount, but of course getting a replacement casting would be my first priority. I was already planning a full tear-down and rebuild.
    I am pretty sure Herm the Overdrive guy will have them in stock, I bought my rebuild kit with the hardened shaft through him.

    Thanks!
     
    Peter Dorey, Sep 7, 2021
    #6
  7. Jw60

    Jw60 That guy 2024 Sponsor 2023 Sponsor 2022 Sponsor

    find the price for a replacement then go get a quote at a machine shop and go with the lesser.
     
    Jw60, Sep 7, 2021
    #7
  8. PieLut

    PieLut Member

    I had the same problem. I used a TIG welding rod called Hastelloy W Nickel Alloy. It has worked great for me an has held up nicely. I built a special cross member, so my new mount is not designed for the stock one.
    More pics can be found on my build thread.
    66 CJ5 Rebuild
    [​IMG]
    [​IMG]
     
    PieLut, Sep 7, 2021
    #8
    Rust Ranger, blalp!, Fireball and 2 others like this.
  9. PieLut

    PieLut Member

    I would machine a piece to match up to the broken half and buy some Hastelloy W and call it good.
     
    PieLut, Sep 7, 2021
    #9