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Thread: 4L60E cooler lines

  1. #1
    Join Date
    Dec 2008
    Location
    Keller, TX
    Posts
    40

    4L60E cooler lines

    Trying to fit my truck with braided stainless tranny cooler lines. Any one know what thread the feed and return ports are in trans case? Local tranny shops are stumped. They dont look like 1/4 npt i compared old fittings to 1/4 fitting.
    72 C10 5.3 4L60E

  2. #2
    Join Date
    Nov 2003
    Location
    Denton Texas
    Posts
    20,540
    its like 3/8 straight pipe thread, maybe. Its not tapered.
    See my truck data in the "My Garage" section here... http://www.ls1truck.com/forums/my-ga...tml#post191709

  3. #3
    Join Date
    Aug 2006
    Posts
    192
    I had that issue with my 4l80e, I wanted an adapter fitting (trans thread to -6an) but could not find one, Vince at FLT trannys makes a custom one, but only for tranny customers...so I left the stock tubing/fittings coming out of tranny, cut about 8 inches back, used some compression to -an adapters and ran my braided line to my tranny cooler up front. Looks good to me.
    I know there are 4l60e -an adapter fittings out there, I have seen them on several builds on here and ls1tech.
    good luck.
    86 C10 6.0/4l80e

  4. #4
    Join Date
    Nov 2008
    Posts
    2
    This might be what you are looking for.
    Transmission Fittings & Adapters

  5. #5
    Join Date
    Nov 2003
    Location
    Denton Texas
    Posts
    20,540
    Food find. Not quite the same as what FLT makes but works just the same.
    See my truck data in the "My Garage" section here... http://www.ls1truck.com/forums/my-ga...tml#post191709

  6. #6
    Join Date
    Aug 2008
    Location
    North Texas
    Posts
    12,078
    Quote Originally Posted by RedHeartbeat View Post
    Food find.

    Really? To think I thought you said "food fight!!!"....


  7. #7
    Join Date
    Nov 2003
    Location
    Denton Texas
    Posts
    20,540
    WTF? who did that? Was supposed to be "Good Find"
    See my truck data in the "My Garage" section here... http://www.ls1truck.com/forums/my-ga...tml#post191709

  8. #8
    Join Date
    Dec 2008
    Location
    Keller, TX
    Posts
    40
    cool I got them ordered thanks stang!
    72 C10 5.3 4L60E

  9. #9
    Join Date
    Nov 2008
    Posts
    2
    Glad I could help. Whats the cost on those?

  10. #10
    Join Date
    Dec 2008
    Location
    Keller, TX
    Posts
    40
    17 dollars for the pair..
    72 C10 5.3 4L60E

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