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Ground Shaker  GS-NGMTW3210B

10" Black Tw3 Dual Sealed Sub Box for 1999-2006 & 2007 Classic GMC Sierra Ext-Cab

Item #99056

Condition:   Brand New

Product Highlights

  • 10" TW3 Subwoofer
  • Dual Sealed Box
  • GMC Sierra Audio
  • Classic Ext-Cab
  • Truck Bass Upgrade

  Free 2-Years Warranty Included!
60 DAYS Returns Accepted.
FREE Lifetime Tech Support.
FREE Shipping (No Minimum).
60 DAYS Price change protection.

$340.00

Reg. Price $420.00  Save $80.00
  Free 2-Years Warranty Included!
60 DAYS Returns Accepted.
FREE Lifetime Tech Support.
FREE Shipping (No Minimum).
60 DAYS Price change protection.

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Ground Shaker Authorized Dealer

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Ground Shaker GS-NGMTW3210B 10" Black Tw3 Dual Sealed Sub Box for 1999-2006 & 2007 Classic GMC Sierra Ext-Cab

We are an Ground Shaker authorized dealer so you get up-to-date, fully warrantied products. Shipping is free to the lower 48 states on everything you order!

What's Inside?
  • • 10" Black Tw3 Dual Sealed Sub Box
  • • Owner's Manual
Kicker_KM
Powerful Dual-Chamber Performance

Designed for serious bass lovers, this sub box features a 9 3/4" cutout and dual individual chambers for balanced, powerful sound. With a generous 1.78 ft³ total air volume and 0.89 ft³ per subwoofer, it delivers deep, clean bass that enhances every drive. Built solid at 40 lbs with a 6 1/2" mounting depth, it’s the perfect upgrade for a strong, reliable truck audio setup.

Sleek Fit, Big Sound

With dimensions of 8 1/4” H × 54 1/4” L × 13 1/2” D, this sub box is designed to fit perfectly under your rear seat while maximizing space. Its low-profile design keeps your interior clean without sacrificing powerful bass performance. Upgrade your truck’s audio with a setup that looks great and hits hard.

 

Kicker_KM
Kicker_KM
Rugged Build, Premium Sound

Constructed from 5/8" high-quality MDF wood and finished with a durable trunk liner carpet, this sub box is built for strength and long-term use. Premium Titebond silicone sealing and wood glue ensure an airtight design for cleaner, deeper bass. Dual binding post terminals provide a secure connection for reliable, high-performance audio every time.


SPECIFICATIONS


  • Speaker Size : 10 Inches
  • Number Of Subwoofers : 2
  • Construction : 5/8 MDF
  • Volume : 1.78 Cu. Ft.
  • Enclosure Type : Sealed
  • Vehicle Make : GMC

FEATURES


Specifications:

  • Cutout Diameter: 9 3/4"
  • Total Air Volume: 1.78 ft³
  • 2 Individual Chambers
  • Volume Per Subwoofer: 0.89 ft³
  • Weight: 40 lbs
  • Mounting Depth: 6 1/2"

 

Dimensions:

  • Height: 8 1/4”
  • Length: 54 1/4”
  • Depth: 13 1/2”

 

Construction:

  • 5/8" high-quality MDF wood
  • Carpeted with durable trunk liner finish
  • Sealed with high-quality Titebond silicone
  • Glued with high-quality Titebond wood glue
  • 2 Binding post terminals

 

Installation:

  • Fits under rear seat
  • Upward firing
  • 2007 fits only old body style
  • Will not fit trucks with V-shaped hump (use JCHV models for V-shaped hump)
  • UPC:
  • Weight: 40
  • Authorized Internet Dealer
Warranty: 2 Year(s) Warranty.
This item is accompanied by a manufacturer's warranty. If it is found to be defective, it may be returned to OnlineCarstereo.com for replacement within 2 Year(s) from the original date of purchase with proper return authorization.

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