Fitting Vehicle Options: TR,TS(56)(MRG)(THIS PART MAY BE -WET- WITH RESIDUAL AUTOMATIC TRANSMISSION FLUID (ATF) FROM SUPPLIER TESTING PRIOR TO ITS SHIPMENT TO GM SERVICE), TT,TU(56)(MRG)(THIS PART MAY BE -WET- WITH RESIDUAL AUTOMATIC TRANSMISSION FLUID (ATF) FROM SUPPLIER TESTING PRIOR TO ITS SHIPMENT TO GM SERVICE)