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  1. W

    Has anybody seen a 7.4-454 with a little square tag on the right side behind the motor mount?

    The tags reads : manufactured for general motors, part no.88890529, date 05-2002, serial no.17683, then 1113 at the bottom Any idea about what this motors origin is ?
  2. W

    Looking for a thread about crewcab with t400 rear axle gearing. Mine is to low need more cruising sp

    86 crewcab dually 454wth400 14 bolt rear end. The truck is revving to go 65mph on freeway. I'm running 215/75-16s and would like to be able to drive 80 like all the other crazies on the road! Any ideas about a good axle gear set to achieve this would be much appreciated.
  3. W

    Dually door interchange ?

    Will standard cab doors interchange with the front doors on a Crewcab same year ?
  4. W

    New to forum (wrenchless) is the user name that worked so be it.How you all doing ?

    I have a 95 extra cab dually , and 86 crew cab dually I'm restoring been a GMC guy for a long time, but don't know everything so it pays to network. So maybe I can offer help and I'm sure I'll need some. Hope to be a contributing member thank you

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