SHIPS BETWEEN 2 – 4 DAYS. BLACK 12 DUAL SEALED SUB BOX, FITS CHEVY SILVERADO & GMC SIERRA EXTENDED-CAB 89-98. CUTOUT DIAMETER: 11 1/8. TOTAL AIR VOLUME: 1.30 CUBIC FT. VOLUME PER SUBWOOFER: 0.65 CUBIC FT. MOUNTING DEPTH: 5 1/4. TOP DEPTH: 12 3/4. 5/8 HIGH DENSITY MDF WOOD. + MAINLY SEALED WITH HIGH QUALITY SILICONE +. FITS UNDER REAR SEAT. REMOVAL OF JACK REQUIRED. NOT ALL SUBS WILL FIT DUE TO THE CUTOUT DIAMETER OR MOUNTING DEPTH SO PLEASE CHECK THE DIMENSIONS TO MAKE SURE THIS BOX SUITS YOUR SUBS. The item “1988-1998 GMC Sierra Extended-Cab 12 Dual Sealed Subwoofer Enclosure Sub Box” is in sale since Tuesday, May 25, 2021. This item is in the category “Consumer Electronics\Vehicle Electronics & GPS\Car Audio & Video Installation\Speaker/Sub. Enclosures”. The seller is “online-ground-shaker” and is located in Los Angeles, California. This item can be shipped to United States, Canada, United Kingdom, Denmark, Romania, Slovakia, Bulgaria, Czech republic, Finland, Hungary, Latvia, Lithuania, Malta, Estonia, Australia, Greece, Portugal, Cyprus, Slovenia, Japan, Sweden, South Korea, Indonesia, Taiwan, South africa, Thailand, Belgium, France, Hong Kong, Ireland, Netherlands, Poland, Spain, Italy, Germany, Austria, Bahamas, Israel, Mexico, New Zealand, Philippines, Singapore, Switzerland, Norway, Saudi arabia, Ukraine, United arab emirates, Qatar, Kuwait, Bahrain, Croatia, Malaysia, Brazil, Chile, Colombia, Costa rica, Panama, Trinidad and tobago, Guatemala, Honduras, Jamaica, Antigua and barbuda, Aruba, Belize, Dominica, Grenada, Saint kitts and nevis, Saint lucia, Montserrat, Turks and caicos islands, Barbados, Bangladesh, Bermuda, Brunei darussalam, Bolivia, Ecuador, Egypt, French guiana, Guernsey, Gibraltar, Guadeloupe, Iceland, Jersey, Jordan, Cambodia, Cayman islands, Liechtenstein, Sri lanka, Luxembourg, Monaco, Macao, Martinique, Maldives, Nicaragua, Oman, Peru, Pakistan, Paraguay, Reunion, Viet nam.

• Number of Ports: Sealed
• MPN: Does Not Apply
• Country/Region of Manufacture: United States
• Compatible Vehicle Make: GMC
• Fitment: Under Seat
• Speaker Size: 12″
• Brand: Ground-shaker