Wellington Parts Corp Turbo Hydramatic TH THM 400 425 475 Transmission 1-Pin Case Connector 1965 -1998 GM TH425 THM475 TH400 THM400 Chevrolet Electrical Passing Gear TH475 Seal 3L80-HD 3L80HD GMC Truck O'ring Kick Down Detent Solenoid 1-Prong One-Prong 1965 to 1998