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Automatic Transmission Lines

Discussion in '1973-1991 K5 Blazer | Truck | Suburban' started by Nate87k5, Dec 7, 2002.

  1. Nate87k5

    Nate87k5 Registered Member

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    What line is the return line and what line it the sending line on a 700R transmission on a 87? Thanks.
     
  2. heavy4x4

    heavy4x4 1/2 ton status

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    Bottom on radiator = return to tranny
    Top on radiator = entering radiator from tranny

    I can't remember how it is on the tranny itself. Try a search...it's been covered. If all else fails, just use the info I just gave you and follow the lines back to the tranny.
     
  3. R72K5

    R72K5 Banned

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    does this go for th350 and 400 and 200/250 and 700r4 also?

    thanks
     
  4. heavy4x4

    heavy4x4 1/2 ton status

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    I couldn't tell you for sure, but that's what it is for the 700R4 equipped vehicles.
     
  5. BobK

    BobK 1/2 ton status

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  6. Highlander

    Highlander 1/2 ton status

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    What I did with mine is with the truck cold I started it up and put my hand on the lines the first one to get warm was the output and the other would be the input from the tranny.

    Eric
     

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