Bundle For CHEVY SILVERADO 1500 2014-2018 GMC SIERRA 1500 2014-2018 SILVERADO 2500HD 3500HD 2015-2018 SIERRA 2500HD 3500HD 2015-2018 #1 Smooth Sensor Retainer Inner or Outer (Qty:1)#2 Smooth Sensor Retainer Inner or Outer (Qty:1)