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Recent content by martin3500

  1. M

    4L80e hard shift

    Wow! When posted the order and spacing of the data I tried to send was shifted all over the place. Tag: Hydra-matic; Made in USA; Code No, 13HDP 6; Serial No. 00-069 269184 Cast in case Rt side: 8472; below that, 24203370 9; Lt. side 8473
  2. M

    4L80e hard shift

    Frankentstein, I guess that would fit right in to this process. Sorry the pic was not good enough to read the #s. The tag says Hydra-matic Cast in case rt. side Made in USA 8472...
  3. M

    4L80e hard shift

    Thanks everybody. THEFERMANATOR, that explains the contradiction on the stall spec for the various engines. I am attaching pics of the spare tranny. I removed the sensor and see that it does have the 40 tooth reluctor ring in there. As I understand what you have told me, this would then have to...
  4. M

    4L80e hard shift

    Thanks again THEFERMANATOR. The shop took the truck in to replace the 93 case and rebuild the 93 innards. They said it was not possible to rebuild it but couldn't seem to say why. I cracked the case and drove about a mile before I realized what the noise had been and saw the trail of fluid. It...
  5. M

    4L80e hard shift

    Thanks, THEFERMANATOR, that was a more clear and complete reply than any I got from the "experts" I talked to before blowing $2500 and a month on this process. I did stop driving it after picking it up from the transmission shop (which has been in business since the 1960s and have rebuild a...
  6. M

    4L80e hard shift

    Split the tranny in my 93 GMC 3500 Crew cab dually 454, 4x4 like a ripe watermelon. Replaced it with a 94 4L80e with a shift kit. Feels like someone hit me from the rear when it shifts. Despite what everyone told me before I put it in, I read that the 94 has an upgraded pressure control solenoid...
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