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  1. D

    Allison 6sp: Transmission acting strange

    So possibly a loose connection or a broke wire somewhere
  2. D

    Allison 6sp: Transmission acting strange

    The other day the transmission in my 2006 GMC Duramax dually started acting a little strange it didn’t really feel like it was slipping and it didn’t shift hard it was delayed it felt like it was between second to third once the truck warms up it seems to go away my husband hooked his scanner up...