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Block T150 Speedometer Port?

Discussion in 'Intermediate CJ-5/6/7/8' started by mcguirev10, Aug 17, 2022.

  1. mcguirev10

    mcguirev10 New Member

    I will be using a GPS speedometer on my 76 CJ5.

    Is there a risk of slinging oil from the unused speedo port on the T150 trans?

    I'm thinking I should block it off somehow. I don't have the cable, anybody know the threads? Or better yet, anybody know where I could get something to block it off? Unless the consensus is just that it's unnecessary, of course.

    Thanks!
     
    mcguirev10, Aug 17, 2022
    #1
  2. dnb71R2

    dnb71R2 SuperDave 2023 Sponsor

    Definitely block it off.
    I used an old speedo cable housing and plugged the cable pass-thru with RTV.
    I don't know what the threads measure.
     
    dnb71R2, Aug 17, 2022
    #2
    Ol Fogie and Stakebed like this.
  3. nickmil

    nickmil In mothballs.

    The speedometer cable is driven off the transfer case not the transmission. It will leak if you don’t block off. I’ve used the end of a cable housing pinched off and an o-ring inside to seal them off.
     
    nickmil, Aug 17, 2022
    #3
  4. mcguirev10

    mcguirev10 New Member

    Thanks! I don't have the cable but I'll figure something out.
     
    mcguirev10, Aug 17, 2022
    #4