Chevy Silverado Extended Cab Sub Box GMC Sierra Extended Cab Sub
Amazon.com: Compatible with Chevy Silverado or GMC Sierra Full Size Extended Cab Truck 2007-2013 Dual 10" Subwoofer Sub Box Speaker Enclosure : Electronics
BLACK 12" DUAL PORTED SUB BOX, FITS 07-18 CHEVY SILVERADO EXT-CAB
Chevy Silverado Crew Cab Sub Box GMC Sierra Crew Cab Sub Box Sub
Chevy Silverado / GMC Sierra Extended Cab 99-06 Dual Subwoofer Box with Amp Rack
2007-2013 Chevy Silverado 1500 Extended Cab Truck Single 10" Sub Box Enclosure - Walmart.com