GM Truck Club
Founded in 2004 ~ We're the #1 Chevy Truck & SUV Forum.
Silverado & Sierra | Tahoe & Yukon | Suburban & Yukon XL | SUV & CROSSOVER
Results 1 to 5 of 5
  1. #1
    Sr. Apprentice AKRide907's Avatar
    Join Date
    Mar 2011
    Fairbanks, Alaska

    Default Sub Box Choices for 2003 Chevy Crew 1500 HD

    Alright, so im surfin the web here trying to get some ideas for a box for my truck. I want to get two 12's in there at some point this coming summer. The two options for boxes are under the backseat or behind the backseat.
    Now heres the dilemma, ive found a bunch of nice boxes for both, mainly these ones:

    Now both of these are for NON hd trucks. I think thats a complete load of crap and i think that they should be able to crossover, but i cant find anywhere online saying that they do or dont. So can anybody give a definitive answer with some support on the subject?

    Thanks guys.
    AkRide907 - Milaud
    2003 Chevy Silverado 1500HD Crewcab 6.0L
    Quadrasteer, K&N Cold Air Intake, Catback True Dual Exhaust
    "Welcome to Alaska... where its cold as f**k, and we go hard with our trucks."
    Next project: Install Long Tube Headers w/custom header back exhaust pipes

  2. #2


    Check on E-Bay you can find the box custom made for your truck. For I have a 2004 Z71 Silverado Extended cab. The enclosure fits under the rear seat. It has 2 800 watt peak 10" kickers in it. I believe you can get 12's also. The E-Bay seller is Q-Logic or just search E-Bay for the enclosure. I just installed one with a Kenwood 1000 Watt Amp... The box was 259 plus 20 for shipping and the amp was 145 with a wiring kit that you can also find on E-Bay.......
    2004 Z71 Silverado
    Cold inatke kit & Throttle Body Spacer
    3" Body Lift & New 275/75/18 BF A/T's
    Pioneer Avic 90BT and Rear Camera
    Alarm & Remote Start
    10" Custom Sub under rear seat powered by 1000 watt kenwood amp

  3. #3
    Sr. Apprentice AKRide907's Avatar
    Join Date
    Mar 2011
    Fairbanks, Alaska


    Sorry brah. Ive been talkin around alot with some of the guys that i know, alot of people are telling me that they didnt make a whole lot of 1500 heavy duty crew cab trucks back in 03, thats probably why its hard to find any enclosures for the backseat. Considering i havent even found one that has the right dimensions yet ill probably just build one myself. Better learning experience.

  4. #4

    Enkeiavalanche's Avatar
    Join Date
    Apr 2010
    Piermont,NY, back in Northern NJ now, But may be in IL soon....


    You can also check out They make some very nice Custom Boxes for all of the GM trucks and they all pound..
    08 Z71 Avalanche Mods to date: K&N CAI,Hellwig Swaybars and End Links, Corsa Sport Exhaust, Superchips Programer,IPCW LOF & 3rd brake light and tails, AMI Gas door,Show Hooks and Door locks, Enkei Wheels, with Pirelli tires, StreetScene Bowties, Grant Steering wheel,Muth signal mirrors,SSBC Big Brake kit,Huskyliner Mug gards,Floor mats and Hood shield, McGard Lug nuts and locks, Bedrug, Cervini's Ram Air hood,35watt HID Fog lights, Sylvania bulbs all around ZXE's Highs and Lows, WhiteNight Back up lights,Sirius and HD Radio, SnugTop sitting on deck now Got a Softopper on now,Tempress Boat Hatches.... New Bilstein shocks are on... New Mods coming soon..... X

  5. #5
    Master Mechanic clgoch187's Avatar
    Join Date
    Aug 2010
    Gettysburg, Pennsylvania, United States

    Default thats all you need
    03 Silverado 1500
    285/75/16 BFG's
    2 Blaupunkt 10" vW1000 subs in Subthump box
    ProComp Level Lift & 3" rear blocks

Similar Threads

  1. Replies: 0
    Last: 03-21-2011, 09:10 PM
  2. 2003 Chevrolet Chevy 2500HD Pickup Truck Crew Cab 6.0L 4x4
    By jimduke in forum Chevy Truck Tech Forum
    Replies: 2
    Last: 08-11-2010, 12:05 PM
  3. Subs & amp in 2006 Crew Cab - component choices & where to mount amp?
    By ecetim in forum Audio, Video & Gadget Tech
    Replies: 7
    Last: 12-09-2009, 04:13 PM
  4. Replies: 0
    Last: 07-24-2009, 12:10 PM
  5. 2003 - 2004 Silverado 1500 Crew - best engine?
    By mspa in forum Performance & Fuel
    Replies: 8
    Last: 04-09-2009, 12:09 AM

Tags for this Thread

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts