got tired of breaking the 60e

Discussion in 'GM Powertrain' started by Superado, Oct 6, 2008.

  1. Superado

    Superado Member

    so the new 80e is now in...
    been working on it for a couple of weeks...
    list of a few items that were required:
    - a 60e to 80e harness adapter
    - front VSS pigtail w/ pcm pins (60e has rear only)
    - new slip yoke and u-joint (found one that was a direct cutting or bastard joint required)
    - cross-member modified to move tranny mount back several inches
    - y-pipe had to be modified as well
    - tune segments for tranny calibrations & diagnostics swapped in from a tune out of a truck w/ the same OS as mine but w/ an 80e

    so good!
    Last edited: Oct 6, 2008
  2. 95CTburb19

    95CTburb19 Epic Member 5+ Years 1000 Posts

    did you get a brand new 80e or a rebuild?
  3. Crawdaddy

    Crawdaddy All hail the Mad King!! Staff Member 5+ Years 1000 Posts Platinum Contributor

    What kind of power are you turning to cause a 4L60E to fail. What size tires? Unless you're draggin' with 500+HP or 37" tires, you shouldn't be killing 4L60Es... Additionally, if you're killing 4L60s, I don't know if a 4L80 will do you much better, because the 80 isn't made for the same purposes the 60 is. IF you're in one of the areas that requires more than a stock 60 can handle, the 60 can be built up quite handily to withstand the increased strain.
  4. Superado

    Superado Member


    yes I do drag race it....
    even a Level 5 4L60/65e from FLT is only rated @ about 550 in a heavy a$$ truck...
    there are plenty handling more HP in cars for sure...3900 lbs and less...
    I'm at 4930 w/ me in it...
    and should be @ 600+ HP this go around...
    was 400+ with ProCharged stock motor...never broke the stock tranny...
    burnt up the 3-4 clutches in the built one under 5k miles with old set-up and new converter...
    broke the input drum / shaft w/ the new set-up in under 1k miles...
    Last edited: Oct 13, 2008
  5. dwill3015

    dwill3015 Epic Member 5+ Years ROTM Winner 1000 Posts

    Nice upgrade! let us know how it works out.

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