6. ENGINE REMOVAL/INSTALLATION MXU 300/250 Drive Select Shift Remove the drive select shift to drive select arm connecting bolt and nut. Remove the two mounting nuts and drive select shift. Bolt Nuts Bolt Remove the bolt and thermostat. Thermostat Electrical Holder Vacuum Hose Remove the two nuts and electrical holder. Disconnect air supply hose and vacuum hose from the air solenoid valve, then remove the air solenoid valve. Nuts Air Solenoid Valve Air Solenoid Valve 6-9