3 0 2004 GMC C8500 Transmission Control Module (TCM) Contact for price Transmission Control Module (TCM), Good Condition. Call DTI Trucks for more information and a shipping quote. ConditionUsedFits To Make(s)GMCFits To Model(s)C8500Stock Number71411 MLS Number13422065CategoryTransmission Control Modules (TCM) Last Updated6/25/2025 LocationWheat Ridge, CO, US Sold ByDTI Truck Parts (833) 614-___ SHOWNUMBERCall Seller Email Seller Save More Info