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Thread: 92-96 and 97 and up 4L60/80 diferences?

  1. #1
    Join Date
    May 2004
    Location
    NAS China Lake California
    Posts
    132

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    I was looking at a couple of TCI trannys and was wondering why the 96 and below tranny's are one part number and the 97 adn above trannys are another part number....whats the dif here? were there improvements...it wouldnt be the speedo would it? vortec trucks still had analog guages....I think...ha ha....thanks for the input..


  2. #2
    Join Date
    Apr 2003
    Location
    Mansfield, Texas, USA
    Posts
    2,462
    The newer 60Es have a removeable bellhousing and a 33 spline inputshaft over the older 30 spline from what I recall. Also the valve body is a lil different (mostly dealing with TCC lockup), basic internals remained the same.


    '97s still used VSS to control the electric speedo...

    Um, the 80E is a totally diff monster. Very few improvements over the years. Nothing really to write home about IMO...
    The superior man is modest in his speech, but exceeds in his actions. - Confucius

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  3. #3
    Join Date
    Jun 2003
    Posts
    713
    i believe the one i got is a 96 or 97 model.
    04 supercrew 5.4 3 valve-magnaflow catback



    formerly 02denali 12.79@107

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