2003-2007 Chevy Silverado 1500 2500 3500 Driver Side Bottom Seat Foam Cushion. You will REMOVE the OLD CUSHION & then install the New Cushion! 2003 - 2007 Chevrolet Silverado 1500 & 1500HD LT LS SS Z71 W/T Single-Cab, Quad-Cab, Crew-Cab.