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93 LC; drive plates and ECU

Discussion in '80-Series Tech' started by cstamm81, Feb 26, 2007.

  1. cstamm81

    cstamm81

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    So I am considering buying a certain built 93 LC. In my studies, it seems the 93's have thinner drive plates and peksy ECU's. How big of a problem are these two things. Looks like the ECU's cost about 1200. Do the thin drive plates equal a weak link?
     
  2. cruiserdan

    cruiserdan SupportingVendor Emeritus Moderator

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    Drive flanges are not really much of an issue. Only April 93 and older vehicles have the possibly problematical ECM.
     
  3. cstamm81

    cstamm81

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    Thanks cruiserdan, I will check the mfg date.
     
  4. Bearcat80

    Bearcat80

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    As far as I know, the drive flanges are just different, not necessarily better. I've not seen anyone post a problem with them. The ECU can be replaced with a used one with the right part # for appx $200.00, and you only need to do this if you see the code. The same code can be caused by a slightly too tight accelerator cable.(This I learned the hard way) On the plus side, you get a tranny made for buses, and your code reader comes from your stash of office supplies. I would be much more concerned with general vehicle condition and past maintenance than what year it is.
     
  5. cstamm81

    cstamm81

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    crap, looks like mfg date is 1/93. bearcat, where can I get used ECU's for $200?
     
  6. cruiserdan

    cruiserdan SupportingVendor Emeritus Moderator

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    That is an avearge junk yard price. You would search the import yards for a 5-93 through 12-94 donor.

    There is also the possibility that the computer has already been changed. If so it will have an 89661-60221 installed.

    The computer is not doomed to fail for that matter. It's a gamble.
     
  7. Beowulf

    Beowulf

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    And if/when they fail, it is not a disabling condition. The truck will still work and run OK. In fact, most of those that have failed have only had the MIL codes as the symptoms.

    -B-