Enclosures - Xtreme Enclosures™ (Vehicle Specific) - Truck Sub Boxes - GMC - SIERRA CREW CAB - 2001-2006 HD (Heavy Duty) Classic Body - Dual sub box behind the seat - SSA STORE

Fits 2001-2006 Chevrolet Silverado / GMC Sierra Crew Cab Heavy Duty 1500, 2500 AND 3500 Series Truck Note: ( FITS ONLY HD MODELS ) also fits 2007 classic body crew Fits two 8 inch or two 10 inch subwoofers Fits behind rear seat Mounting Depth = 6 inches...