what tranny am i workin with?

Discussion in 'GM Diesel 6.5' started by eightyone, Oct 31, 2005.

  1. eightyone

    eightyone Member

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    i just picked up a 94 2500 diesel pickup. im wondering how i can tell what tranny its got, and how good it is. i have a tendency to beat on trucks pretty hard, so i usually have manual transmission, but i couldnt find the truck i wanted in a manual. im not used to these newwer trucks. thanks for any info.
     
    eightyone, Oct 31, 2005
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  2. joez

    joez Well-Known Member

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    '94 would be a 4L80E. Picture a TH400 with an overdrive, and thats about what it is.
     
    joez, Oct 31, 2005
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  3. Brisk

    Brisk Well-Known Member

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    And electronically controlled. It is a fairly good trans. It will hold up really well to a stock engine. just make sure there is a cooler on it.
     
    Brisk, Oct 31, 2005
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  4. eightyone

    eightyone Member

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    awsome, thanks guys.
     
    eightyone, Oct 31, 2005
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  5. sweetk30

    sweetk30 Well-Known Member

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    horseheads, ny,i live in the rust belt.
    i have 4l80-e trannys in all 3 of my trucks love them. just wish the first and second gear were better. th350/700 units have 2 planiteries in them the 4l80-e has 3 units. vary beffy.

    also try this if you want a little more shift firmness. i love it. works good easy to install.https://towrig.com/forums/showthread.php?t=1123
     
    sweetk30, Nov 6, 2005
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