Fitting Vehicle Options: AJ,AK(37-67)(LT1,MF6,KNR)(THIS PART MAY BE -WET- WITH RESIDUAL AUTOMATIC TRANSMISSION FLUID (ATF) FROM SUPPLIER TESTING PRIOR TO ITS SHIPMENT TO GM SERVICE), AJ,AK(67)(LT1,MF6)(EXC KNR)(THIS PART MAY BE -WET- WITH RESIDUAL AUTOMATIC TRANSMISSION FLUID (ATF) FROM SUPPLIER TESTING PRIOR TO ITS SHIPMENT TO GM SERVICE)