Five Star Viskus Drive Torque Converter, 1300-1500 Rpm Stall Speed, Billet F-Trim Stator, Positive Impeller, 2010.5 And Up 6.6L Duramax . 2010.5 And Up 6.6L Duramax Five Star Viskus Drive Torque Converter, 1300-1500 Rpm Stall Speed, Billet F-Trim Stator, Positive Impeller