SHIPS BETWEEN 2 – 4 DAYS. BLACK 12 DUAL SEALED SUB BOX, FITS CHEVY SILVERADO & GMC SIERRA EXTENDED-CAB 88-98. CUTOUT DIAMETER: 11 1/8. TOTAL AIR VOLUME: 1.80 CUBIC FT. VOLUME PER SUBWOOFER: 0.90 CUBIC FT. MOUNTING DEPTH: 6 (WITH 5 1/2 MAGNET DIAMETER). TOP DEPTH: 12 1/2. BOTTOM DEPTH: 18 3/4. 5/8 HIGH DENSITY MDF WOOD. + MAINLY SEALED WITH HIGH QUALITY SILICONE +. FITS UNDER REAR SEAT. REQUIRES REMOVAL FACTORY JACK KIT. 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 “88-1998 Chevy Silverado Extended Cab Sub Box 12 Dual Subwoofer Box Enclosure” is in sale since Friday, October 15, 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
• Model: Cab
• MPN: Does Not Apply
• Country/Region of Manufacture: United States
• Compatible Vehicle Make: Chevrolet
• Fitment: Under Seat
• Speaker Size: 12″
• Brand: Ground-shaker

SHIPS BETWEEN 2 – 4 DAYS. BLACK 12 DUAL SEALED SUB BOX, FITS CHEVY SILVERADO & GMC SIERRA EXTENDED-CAB 88-98. CUTOUT DIAMETER: 11 1/8. TOTAL AIR VOLUME: 1.80 CUBIC FT. VOLUME PER SUBWOOFER: 0.90 CUBIC FT. MOUNTING DEPTH: 6 (WITH 5 1/2 MAGNET DIAMETER). TOP DEPTH: 12 1/2. BOTTOM DEPTH: 18 3/4. 5/8 HIGH DENSITY MDF WOOD. + MAINLY SEALED WITH HIGH QUALITY SILICONE +. FITS UNDER REAR SEAT. REQUIRES REMOVAL FACTORY JACK KIT. 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 “88-1998 Chevy Silverado Extended Cab Sub Box 12 Dual Subwoofer Box Enclosure” is in sale since Saturday, September 18, 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
• Model: Cab
• MPN: Does Not Apply
• Country/Region of Manufacture: United States
• Compatible Vehicle Make: Chevrolet
• Fitment: Under Seat
• Speaker Size: 12″
• Brand: Ground-shaker

SHIPS BETWEEN 2 – 4 DAYS. BLACK 8 DUAL SEALED SUB BOX, FITS CHEVY SILVERADO & GMC SIERRA EXTENDED-CAB 88-98. CUTOUT DIAMETER: 7 1/8. TOTAL AIR VOLUME: 1.45 CUBIC FT. VOLUME PER SUBWOOFER: 0.73 CUBIC FT. MOUNTING DEPTH: 5 1/4 WITH 5 MAGNET DIAMETER. BOTTOM DEPTH: 16 1/2. 5/8 HIGH DENSITY MDF WOOD. + MAINLY SEALED WITH HIGH QUALITY SILICONE +. FITS UNDER REAR SEAT. REQUIRES REMOVAL FACTORY JACK KIT. NOT ALL SUB’S 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 “88-1998 Chevy Silverado Extended Cab Sub Box 8 Dual Subwoofer Box Enclosure” is in sale since Friday, June 4, 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
• Model: Cab
• MPN: Does Not Apply
• Country/Region of Manufacture: United States
• Compatible Vehicle Make: Chevrolet
• Fitment: Under Seat
• Speaker Size: 8″
• Brand: Ground-shaker

SHIPS BETWEEN 2 – 4 DAYS. BLACK 12 DUAL SEALED SUB BOX, FITS CHEVY SILVERADO & GMC SIERRA EXTENDED-CAB 88-98. CUTOUT DIAMETER: 11 1/8. TOTAL AIR VOLUME: 1.80 CUBIC FT. VOLUME PER SUBWOOFER: 0.90 CUBIC FT. MOUNTING DEPTH: 6 (WITH 5 1/2 MAGNET DIAMETER). TOP DEPTH: 12 1/2. BOTTOM DEPTH: 18 3/4. 5/8 HIGH DENSITY MDF WOOD. + MAINLY SEALED WITH HIGH QUALITY SILICONE +. FITS UNDER REAR SEAT. REQUIRES REMOVAL FACTORY JACK KIT. 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 “88-1998 Chevy Silverado Extended Cab Sub Box 12 Dual Subwoofer Box Enclosure” is in sale since Sunday, August 15, 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
• Model: Cab
• MPN: Does Not Apply
• Country/Region of Manufacture: United States
• Compatible Vehicle Make: Chevrolet
• Fitment: Under Seat
• Speaker Size: 12″
• Brand: Ground-shaker

SHIPS BETWEEN 2 – 4 DAYS. BLACK 10 DUAL SEALED SUB BOX, FITS CHEVY SILVERADO & GMC SIERRA EXTENDED-CAB 88-98. CUTOUT DIAMETER: 9 1/4. TOTAL AIR VOLUME: 1.45 CUBIC FT. VOLUME PER SUBWOOFER: 0.73 CUBIC FT. MOUNTING DEPTH: 5 1/4 (WITH 5 MAGNET DIAMETER). BOTTOM DEPTH: 16 1/2. 5/8 HIGH DENSITY MDF WOOD. + MAINLY SEALED WITH HIGH QUALITY SILICONE +. FITS UNDER REAR SEAT. REQUIRES REMOVAL FACTORY JACK KIT. 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 “88-1998 Chevy Silverado Extended Cab Sub Box 10 Dual Subwoofer Box Enclosure” is in sale since Friday, June 4, 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: Chevrolet
• Fitment: Under Seat
• Speaker Size: 10″
• Brand: Ground-shaker

SHIPS BETWEEN 2 – 4 DAYS. BLACK 12 DUAL SEALED SUB BOX, FITS CHEVY SILVERADO & GMC SIERRA EXTENDED-CAB 88-98. CUTOUT DIAMETER: 11 1/8. TOTAL AIR VOLUME: 1.80 CUBIC FT. VOLUME PER SUBWOOFER: 0.90 CUBIC FT. MOUNTING DEPTH: 6 (WITH 5 1/2 MAGNET DIAMETER). TOP DEPTH: 12 1/2. BOTTOM DEPTH: 18 3/4. 5/8 HIGH DENSITY MDF WOOD. + MAINLY SEALED WITH HIGH QUALITY SILICONE +. FITS UNDER REAR SEAT. REQUIRES REMOVAL FACTORY JACK KIT. 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 “88-1998 Chevy Silverado Extended Cab Sub Box 12 Dual Subwoofer Box Enclosure” is in sale since Friday, June 4, 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
• Model: Cab
• MPN: Does Not Apply
• Country/Region of Manufacture: United States
• Compatible Vehicle Make: Chevrolet
• Fitment: Under Seat
• Speaker Size: 12″
• Brand: Ground-shaker

THANK YOU FOR YOUR PATIENCE. BLACK 10 DUAL SEALED SUB BOX, FITS CHEVY SILVERADO & GMC SIERRA EXTENDED-CAB 88-98. CUTOUT DIAMETER: 9 1/4. TOTAL AIR VOLUME: 1.45 CUBIC FT. VOLUME PER SUBWOOFER: 0.73 CUBIC FT. MOUNTING DEPTH: 5 1/4 (WITH 5 MAGNET DIAMETER). BOTTOM DEPTH: 16 1/2. 5/8 HIGH DENSITY MDF WOOD. + MAINLY SEALED WITH HIGH QUALITY SILICONE +. FITS UNDER REAR SEAT. REQUIRES REMOVAL FACTORY JACK KIT. 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 “88-1998 Chevy Silverado Extended Cab Sub Box 10 Dual Subwoofer Box Enclosure” is in sale since Tuesday, March 23, 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: Chevrolet
• Fitment: Under Seat
• Speaker Size: 10″
• Brand: Ground-shaker

THANK YOU FOR YOUR PATIENCE. BLACK 12 DUAL SEALED SUB BOX, FITS CHEVY SILVERADO & GMC SIERRA EXTENDED-CAB 88-98. CUTOUT DIAMETER: 11 1/8. TOTAL AIR VOLUME: 1.80 CUBIC FT. VOLUME PER SUBWOOFER: 0.90 CUBIC FT. MOUNTING DEPTH: 6 (WITH 5 1/2 MAGNET DIAMETER). TOP DEPTH: 12 1/2. BOTTOM DEPTH: 18 3/4. 5/8 HIGH DENSITY MDF WOOD. + MAINLY SEALED WITH HIGH QUALITY SILICONE +. FITS UNDER REAR SEAT. REQUIRES REMOVAL FACTORY JACK KIT. 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 “88-1998 Chevy Silverado Extended Cab Sub Box 12 Dual Subwoofer Box Enclosure” is in sale since Monday, March 22, 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: Chevrolet
• Fitment: Under Seat
• Speaker Size: 12″
• Brand: Ground-shaker