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A few questions about disc brake swap for 61 cj5....

Discussion in 'Builds and Fabricators Forum' started by static112, Aug 13, 2007.

  1. Aug 13, 2007
    static112

    static112 new guy

    south eastern...
    Joined:
    Aug 8, 2007
    Messages:
    6
    Hi all, I am new to this site and am a proud owner of a 61 cj5. This is my first jeep and I am trying to get it trail ready ( it was in rough shape ,but still a steal for the $$$$$) and have a few questions for you veteran jeepers. Let me tell you what I am trying to do here, first I am in the process of converting my front drums to disc. I have read several tech articles about how to do this but one thing is not clear, where does the backing plate (I.E. caliper mount) bolt up? Does the spindle go in front of the plate or behind it? Second, is there a seal between the differential and the outside universal joint? When I was taking the hub assembly apart I found what looked and felt like half of an old rope or oakum seal.... it was total mush of course but undeniably resembled a seal of sorts(I.E. not rubber, possibly old school felt maybe?). If anybody can shed some light on my task that would be great as I would like to wheel my jeep on the fall tours. Thanks.

    P.S here are some pics of my new toy, tell me what you think....
     
  2. Aug 13, 2007
    jzeber

    jzeber Well-Known Member 2022 Sponsor

    Morgan Hill, Ca
    Joined:
    Nov 15, 2003
    Messages:
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    Last edited: Aug 13, 2007
  3. Aug 13, 2007
    Howard Eisenhauer

    Howard Eisenhauer Administrator Staff Member

    Tantallon, Nova...
    Joined:
    Nov 22, 2003
    Messages:
    8,124
    The actual seals to keep the lube in the pumpkin are in the pumpkin, you have to pull the carrier to replace them. There is separate lubricant, called "pudding" by really cool guys, in the bells for the u-joints, it & the dif lube aren't really supposed to mix & won't if the seals are good.

    As for the felt seal it seems to be one of those "running changes" kinda things, some digrams show it and a "pilot" bushing, others don't. I don't hav'em in my '55, they don't show in my '59 parts manual but they're there big as life in the service manual. :rofl:

    From the diagram in the service manual it looks like you have the brass pilot bushings inserted into the outboard ends of the tube, the drawing seems to indicate the seal goes in behind this.

    Looks like fun to change.:twisted:

    Have Fun,

    H.
     
  4. Aug 14, 2007
    grannyscj

    grannyscj Headed to the Yukon

    Anchorage, AK
    Joined:
    Dec 19, 2005
    Messages:
    1,758
    The caliper mount bolts up the same place the old backing plates came off. Mine's a 27 but I think the swap is the same for the 25, so here's a couple of pics. Two show the caliper mount (if you can see the fuzzy one) and the other shows clocking (forward is to the right). Hope they help.:v6: View attachment 19304

    View attachment 19305

    View attachment 19306
     
    Last edited: Sep 9, 2007
  5. Aug 15, 2007
    static112

    static112 new guy

    south eastern...
    Joined:
    Aug 8, 2007
    Messages:
    6
    I forgot to ask in my other message, what was the part # for the gasket and seal in the axle? was it felt? anyway I am gathering parts as we speak. thanks
     
  6. Aug 15, 2007
    static112

    static112 new guy

    south eastern...
    Joined:
    Aug 8, 2007
    Messages:
    6
    thank you brother, I'm doing some yoga to prepare for the mental anguish off changing those seals (here comes the torch n hammer!) Will post pics of the carnage.......
     
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