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Thread: auto transmission cooler fittings change

  1. #1
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    auto transmission cooler fittings change

    Hi i would like to change the cooler fittings ends to these Hardline Fitting End Adapter Fitting 1/2 Tube To Male AN8 (Black) 108-08BLK for easy removal of the lines as i find it difficult to remove the factory connectors. I would like some opinion's as to whether it will work or should i use weld on AN 8 connectors.
    Thanks Peter

  2. #2
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    G’day Peter.

    Earlier this year my auto cooler started leaking from where the pipe connects to the side tank of the cooler or the ‘elbow’ as I call it. The common failure point of the factory coolers.

    I said to hell with it and replaced the entire system and replaced with upgraded cooler etc.

    AN8 is the perfect size.

    I used 1/2inch to 8AN fittings on the transmission hard lines and worked perfectly. So I know the concept works.

    I ended up using Speedflow connectors made in Australia. Expensive but worth every dollar. Would highly recommend. I have no affiliation with them, they just produce a quality product!

    Others have used JLC (I think that’s the name) lifesaver fittings I believe which are a weld on AN fitting on the cooler itself like you are asking for and modified the rubber hoses appropriately.

    Tangent aside. Yes I believe it will work.

  3. #3
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    Quote Originally Posted by Kent_P View Post
    G’day Peter.

    Earlier this year my auto cooler started leaking from where the pipe connects to the side tank of the cooler or the ‘elbow’ as I call it. The common failure point of the factory coolers.

    I said to hell with it and replaced the entire system and replaced with upgraded cooler etc.

    AN8 is the perfect size.

    I used 1/2inch to 8AN fittings on the transmission hard lines and worked perfectly. So I know the concept works.

    I ended up using Speedflow connectors made in Australia. Expensive but worth every dollar. Would highly recommend. I have no affiliation with them, they just produce a quality product!

    Others have used JLC (I think that’s the name) lifesaver fittings I believe which are a weld on AN fitting on the cooler itself like you are asking for and modified the rubber hoses appropriately.

    Tangent aside. Yes I believe it will work.
    Kent did you use the hard line connector on the auto cooler tube or similar that i am looking at. What type of hose did you use.
    Last edited by PETER S; 20th October 2020 at 08:16 PM. Reason: add more

  4. #4
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    Quote Originally Posted by PETER S View Post
    Kent did you use the hard line connector on the auto cooler tube or similar that i am looking at. What type of hose did you use.


    I have been meaning to do a full write up with part numbers and sources on what I did as I suspect others may be finding/have found their older transmission coolers to be failing. I will work on the write up over the next few days in between work.

    I used the same fitting you have mentioned but on the hard line from the transmission to the cooler.

    I then used a 8AN to hose end adapter to adapt it to the flexible hose to route it to the new cooler. From there, I used a few adapters to get the hose to the cooler.

    I replaced the factory rubber hose with a Teflon/PFTE hose suitable for the job.

    I have been leak free for several thousand kms so the idea works.

    If that didn’t answer your question feel free to PM me if you want to.

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