2008-2016 Ford F-250 / F-350 Super Duty 2nd Gen Super Duty — subwoofer box fitment

What we researched for this specific generation: where an enclosure actually fits, what the factory speakers are, how the factory audio is wired, and which real builds and commercial products exist for it. Confidence badges say how well each figure is sourced — this is research, not manufacturer spec.

Body styles covered: Regular Cab, SuperCab, SuperCrew Cab

Where a box actually fits

These are researched envelopes, not a guarantee. Measure your own vehicle — the numbers here tell you what to expect, not what you have.

Crew Cab Solid

Locationbehind rear seat, SuperCrew Cab
Outer bounding boxNo independently measured raw cavity envelope found — the real power-motor-compatible box design is the best available reference point. Vehicle-specific enclosure catalogues; published box footprints are lower bounds on the cavity, not the cavity: SRQ Customs 'Ford F-250/350 1999-2015 Subwoofer Enclosure': 52 x 16 x 16 in (as printed; axes not labelled), rear crew cab area [only 2008-2015]. Vehicle-specific enclosure catalogues; published box footprints are lower bounds on the cavity, not the cavity: Ground Shaker 'BLACK 8" DUAL SEALED SUB BOX, FITS 08-16 FORD F-250 CREW-CAB': Height 16 5/8", Length 58", Top Depth 3", Bottom Depth 6 1/2" (labelled by Ground Shaker), 1.40 FT³ total; 0.70 FT³ per subwoofer, behind rear seat; Ground Shaker 'BLACK 12" DUAL PORTED SUB BOX, FITS 08-16 FORD F-250 CREW-CAB': HEIGHT 16 5/8", LENGTH 58", TOP DEPTH 3", BOTTOM DEPTH 6 1/2" (labelled by Ground Shaker), 1.35 FT^3, behind rear seat; Super Crew Sound 'Ford F-250/ F-350 Supercrew Cab 2008-2016 Dual BTS Subwoofer Box': Width: 36" (as printed; Super Crew Sound does not say outside or inside), 0.50 cubic foot per sub, Behind rear seat.
Known obstructionsA power motor mechanism (likely related to a power-folding or power-sliding rear window/seat feature) must be accommodated by the box design — specific, distinct from the 1st Gen's simpler exclusion approach.

Starting points

Suggested configurations for this vehicle, not prescriptions. Run the numbers in the Box Builder before you buy anything.

Budget

Subwoofers1x10" or dual 10" sealed
Box typesealed
Locationbehind rear seat, SuperCrew Cab

Enthusiast

Subwoofers2x10" or 3x10", power-motor-compatible design (named product)
Box typecustom, power-motor-accommodating
Locationbehind rear seat, SuperCrew Cab

Door speaker fitment

Sizes and depths below are what research turned up for this generation. Confirm against your own vehicle before cutting or ordering — trim levels vary.

Front doors Solid

Factory speaker size6x8" — confirmed, matching the 1999-2007 page's size and the same Kicker product's full 1999-2016 compatibility span.
Known obstructionsNone specifically documented
Adapter bracket neededunconfirmed
TweeterNOT confirmed as a factory location — named aftermarket A-pillar pod products exist (3.5"+tweeter combo for 2010-2016; separate front-door 6.5"+tweeter pod for 2008-2016), all add-on products rather than confirmed factory specs, consistent with the 1999-2007 page's own conclusion that this platform likely lacks a factory tweeter.

Rear doors Solid

Factory speaker size6x8" — confirmed (front and rear match).
Known obstructionsNone specifically documented
Adapter bracket neededunconfirmed

Factory audio integration

Factory amp / premium audioTriangulated from three independent sources, though not a complete year-by-year table. Ford moved from the earlier 'Audiophile' brand (see 1999-2007 companion page) to a Sony-branded premium system on this generation. Sony confirmed on Platinum, King Ranch, and Lariat trims via multiple forum threads (2011-2016 timeframe). this page's pre-existing PAC APSUB-FD21 citation independently corroborates Sony as the factory amp — PAC gates that part to 2013-2016 within this page's span, requiring 'the factory SONY amplifier,' consistent with (not contradicting) the forum-sourced 2011+ timeframe. 2008-2010 remains unconfirmed — real possibility the Audiophile-to-Sony switch happened partway through this generation rather than at its 2008 start. Ford's 2013 Super Duty brochure (the 2015 brochure repeats the 2/4/8-speaker lines): XL 'AM/FM stereo with digital clock and 2 speakers'; XLT 'AM/FM stereo/single-CD player with MP3 capability, digital clock, 4 speakers'; Lariat 'Premium Sound System ... 8 speakers with subwoofer (SuperCab only)' and 'Premium Audio System from Sony ... 8 speakers with subwoofer (Crew Cab only)'; King Ranch and Platinum include the Lariat features. So a Lariat SuperCab has an 8-speaker-plus-subwoofer system that is not Sony, and the Sony system is a Crew Cab item; both have a subwoofer. 2008-2010 not read.
Adding subs without a head-unit swapConfirmed straightforward — commercial direct-fit products exist specifically for this generation.
Head unitNo replacement needed

Known integration products

Mounting locations

Crew Cab Solid

Named commercial product confirmed specifically for this generation: a dual/triple subwoofer box design specifically accommodating a POWER MOTOR mechanism ('Dual/Triple with Power Motor BTS Subwoofer Box,' explicitly scoped to '08-16 SuperCrew Cab') — a distinct design consideration from the 1st Gen (1999-2007) companion page's power-sliding-rear-window conflict, suggesting this generation's power accessory situation is handled differently (a compatible design exists here rather than an outright conflict). Separate commercial coverage also exists via Sound Solutions Audio, explicitly scoped to 2008-2013 Crew Cab.

Builds and products found for this vehicle

Outside links. Some are commercial products, some are owner builds posted on forums — the label says which. We do not endorse any of them.

Show 24 more
  • NET Audio (sealed) off-the-shelf
    2006-2016 Ford Super Duty SuperCrew Sub Box Power Glass and Seat Belt Sealed. NET Audio states fit years 2006-2016 (SuperCrew). Published outside dimensions: 60.5 x 16.25 x 7.375 in (as printed; NET Audio does not label the axes). Published volume: 1.67 ft3. Mounting depth 8in: 4; 10in: 3 3/4; 12in: 3 1/2 in. Type: sealed (NET Audio also lists a ported version). Location: behind back seat; cutouts for rear shoulder belt and power window motor.
  • NET Audio (sealed) off-the-shelf
    2006-2016 Ford Super Duty SuperCrew Sub Box No Power Glass w/ Shoulder Belt Sealed. NET Audio states fit years 2006-2016 (SuperCrew). Published outside dimensions: 55 x 16.75 x 7.375 in (as printed; NET Audio does not label the axes). Published volume: 1.76 ft3. Mounting depth 8in: 4; 10in: 3 3/4; 12in: 3 1/2 in. Type: sealed (NET Audio also lists a ported version). Location: behind back seat; cutouts for shoulder belts and rear vents.
  • SRQ Customs (4 x 6.5", ported) off-the-shelf
    Ford F-250/350 1999-2015 Subwoofer Enclosure. SRQ Customs states fit years 1999-2015 (Crew Cab). Of the 2008-2016 model years here, it covers 2008-2015 only. Published outside dimensions: 52 x 16 x 16 in (as printed; SRQ Customs does not label the axes). Type: ported, out the passenger side. Location: rear crew cab area.
  • Skar Audio (1 x 10", ported) off-the-shelf
    Single 10" 1,000W Loaded Subwoofer Enclosure Compatible with 1999-2016 Ford Super Duty (F-250/350/450) Crew Cab Trucks (L-VS-1X10FORDSD-1999-2016-CREWCAB-V). Skar Audio states fit years 1999-2016 (Crew Cab, 60/40 split rear seat). Outside dimensions: not recorded here — check Skar's product page. Type: ported, up-firing. Location: molded to the floor and factory braces of the crew cab (60/40 split rear seats).
  • Zenclosures (sealed) off-the-shelf
    Ford F250 F350 SuperCrew Crew Cab 2008-2016 Single/Dual Subwoofer Box (BTS). Zenclosures states fit years 2008-2016 (SuperCrew). No outside dimensions on the product page. Published volume: approx 1.00 ft3 total, single/mono chamber. Mounting depth 5.25 (6 in magnet) in. Type: sealed. Location: behind the seat, forward firing; back wall cab liner must be removed or trimmed; driver's side vent removed; does NOT fit with the Sony subwoofer system.
  • NET Audio (sealed) off-the-shelf
    2006-2016 Ford Super Duty SuperCrew Sub Box Power Glass, No Seat Belt Sealed. NET Audio states fit years 2006-2016 (SuperCrew). Of the 2008-2016 model years here, it covers all of them. Published outside dimensions: 60.5 x 16.25 x 7.375 in (as printed; NET Audio does not label the axes). Published volume: 1.88 ft3. Mounting depth 8in: 4; 10in: 3 3/4; 12in: 3 1/2 in. Location: behind rear seat. Maker note: cutouts around the rear power window motor but not the shoulder belt; recesses for the rear wall vents; rear wall carpet requires cutting; a snug fit, easier with the rear seat unbolted.
  • NET Audio (sealed) off-the-shelf
    2006-2016 Ford Super Duty SuperCrew Sub Box Power Glass and Seat Belt Sealed w/ Amp Rack. NET Audio states fit years 2006-2016 (SuperCrew). Of the 2008-2016 model years here, it covers all of them. Published outside dimensions: 60.5 x 16.25 x 7.375 in (as printed; NET Audio does not label the axes). Published volume: 1.54 ft3 shared airspace. Mounting depth 8in: 4; 10in: 3 3/4; 12in: 3 1/2 in. Location: behind rear seat; includes a 16 x 8 in amp rack on the passenger side; cutouts for the rear shoulder belt and power window motor; the back-wall carpet must be cut out.
  • NET Audio (sealed) off-the-shelf
    2006-2016 Ford Super Duty SuperCrew Sub Box Power Glass and Seat Belt Sealed Recessed JL TW3. NET Audio states fit years 2006-2016 (SuperCrew). Of the 2008-2016 model years here, it covers all of them. Published outside dimensions: 61 x 8 x 17 in (as printed; NET Audio does not label the axes). Published volume: 1.67 ft3. Mounting depth 8in: 4; 10in: 3 3/4; 12in: 3 1/2 in (recessed 3/4 in mount for JL TW3). Location: behind rear seat; cutouts for rear shoulder belt and power window motor.
  • Zenclosures (sealed) off-the-shelf
    Ford F250 F350 Extended Cab 2001-2016 Dual Subwoofer Box. Zenclosures states fit years 2001-2016 (Extended Cab). Of the 2008-2016 model years here, it covers all of them. No outside dimensions. Published volume: approx 0.50 ft3 per sub/side (sealed). Mounting depth 4.75 (optional 5.375) in. Hole cutouts 7 1/8 in for 8 in, 9 1/8 in for 10 in. Location: downward firing under the rear seat. Maker note: "Jack Can Remain in Place But Handle Needs Removal".
  • JL Audio Stealthbox SB-F-SUPRDTY/10W1v3 (1 x 10", sealed) off-the-shelf
    JL Audio Stealthbox For 1998-2008 Ford SuperDuty Trucks, one 10W1v2-4 per the page. Retailer states fit years 1998-2008 (of the 2008-2016 model years here, only 2008 is covered), Standard, SuperCab and Crew Cab. Package size 12 in H x 22 in W x 27 in L (package, not enclosure). Location: replaces the centre seat cushion of the 40/20/40 split front bench seat. Fit notes: "Will not fit F-150 trucks. Will not fit models with bucket seats and console."
  • Ground Shaker (ported) off-the-shelf
    BLACK 8" DUAL PORTED SUB BOX, FITS 08-16 FORD F-250 CREW-CAB (SKU GS-RF250P28B). Ground Shaker states fit years 08-16 for Ford F-250 Crew-Cab. Published outside dimensions: Height 16 5/8", Length 58", Top Depth 3", Bottom Depth 6 1/2" (labelled by Ground Shaker). Published volume: 1.35 FT³. Mounting depth 5". Type: ported. Location: behind rear seat; forward firing. Maker notes: REMOVAL OF JACK KIT IS REQUIRED; NEED TO REMOVE POWER WINDOW MOTOR DURING THE INSTALLATION. The same outside dimensions, volume and mounting depth are printed for these related listings: 10" dual [GS-RF250P210B]; 10" dual [GS-RF350P210B]; 12" dual [GS-RF250P212B]; 8" dual [GS-RF350P28B]; 12" dual [GS-RF350P212B].
  • Ground Shaker (sealed) off-the-shelf
    BLACK 8" DUAL SEALED SUB BOX, FITS 02-16 FORD F-250 EXT-CAB (SKU GS-KF25028B). Ground Shaker states fit years 02-16 for Ford F-250 Ext-Cab. Published outside dimensions: Height 5 3/4", Length 50 1/4", Bottom Depth 9 1/2", Top Depth 12" (labelled by Ground Shaker). Published volume: 1.12 FT³ total; 0.56 FT³ per subwoofer. Mounting depth 5 1/2". Type: sealed. Location: under rear seat; up firing. Maker notes: REMOVAL OF JACK KIT IS REQUIRED. The same outside dimensions, volume and mounting depth are printed for these related listings: 10" dual [GS-KF250210B].
  • Ground Shaker (sealed) off-the-shelf
    BLACK 8" DUAL SEALED SUB BOX, FITS 08-16 FORD F-250 CREW-CAB (SKU GS-RF25028B). Ground Shaker states fit years 08-16 for Ford F-250 Crew-Cab. Published outside dimensions: Height 16 5/8", Length 58", Top Depth 3", Bottom Depth 6 1/2" (labelled by Ground Shaker). Published volume: 1.40 FT³ total; 0.70 FT³ per subwoofer. Mounting depth 5". Type: sealed. Location: behind rear seat; forward firing. Maker notes: Removal of Jack Kit is Required; Need to Remove Power Window Motor During the Installation. The same outside dimensions, volume and mounting depth are printed for these related listings: 10" dual [GS-RF250210B]; 12" dual [GS-RF250212B]; 8" dual [GS-RF250KK28B]; 10" dual [GS-RF250L7T210B] (SoloBaric variant); 12" dual [GS-RF250L7T212B]; 8" dual [GS-RF35028B]; 12" dual [GS-RF350L7T212B]; 8" dual [GS-RF350KK28B] (SoloBaric variant); 10" dual [GS-RF250TW3210B] (TW3 variant); 12" dual [GS-RF250TW3212B] (TW3 variant); 10" dual [GS-RF350TW3210B] (TW3 variant); 12" dual [GS-RF350TW3212B] (TW3 variant); 10" dual [GS-RF350210B]; 12" dual [GS-RF350212B]; 10" dual [GS-RF350L7T210B] (SoloBaric variant).
  • Ground Shaker (2 x 10", sealed) off-the-shelf
    BLACK 10" DUAL SEALED L7T SUB BOX, FITS 02-16 FORD F-250 EXT-CAB (SKU GS-KF250L7T210B). Ground Shaker states fit years 02-16 for Ford F-250 Ext-Cab. Published outside dimensions: ALTURA (page is in Spanish: Height) 5 3/4", LONGITUD (page is in Spanish: Length) 50 1/4", PROFUNDIDAD INFERIOR (page is in Spanish: Bottom Depth) 9 1/2", PROFUNDIDAD SUPERIOR (page is in Spanish: Top Depth) 12" (labelled by Ground Shaker). Published volume: 1.12 FT^3 total; 0.56 FT^3 per subwoofer. Mounting depth 5 1/2". Type: sealed. Location: under the rear seat (the page prints it in Spanish: SE INSTALA DEBAJO DEL ASIENTO TRASERO); APUNTA HACIA ARRIBA. Maker notes: TIENE QUE REMOVER EL GATO HIDRAULICO.
  • Sound Off Audio (other (sealed/ported not stated by the maker)) off-the-shelf
    CONSOLE SUB BOX 2008-2010 FORD F250 and F350 Super Duty Crew (SKU F250 CREW 08-10 CONSOLE). Sound Off Audio states fit years 2008-2010 for Ford F250 and F350 Super Duty Crew. Of the 2008-2016 model years here, it covers 2008-2010 only. No outside dimensions on the product page. Published volume: 1.2 cubic ft. Mounting depth 9 inches. Subwoofers: Fits single 8, 10, or 12. Location: Behind front console.
  • Sound Off Audio (other (sealed/ported not stated by the maker)) off-the-shelf
    Console Sub Box 2011-2013 Ford F250 F350 Super Duty Crew (SKU F250CRW 11-13 CNSL). Sound Off Audio states fit years 2011-2013 for Ford F250, F350 Super Duty Crew Cab. Of the 2008-2016 model years here, it covers 2011-2013 only. No outside dimensions on the product page. Published volume: 0.6 cubic feet (per subwoofer). Mounting depth 6 inches. Subwoofers: Single 8" or single 10". Location: Behind the console.
  • Sound Off Audio (other (sealed/ported not stated by the maker)) off-the-shelf
    DUAL SUB BOX 2008-2013 FORD F250 / F350 Super Duty Crew (SKU F250 CREW 08-13 DUAL BTS). Sound Off Audio states fit years 2008-2013 for Ford F250/F350 Super Duty Crew. Of the 2008-2016 model years here, it covers 2008-2013 only. No outside dimensions on the product page. Published volume: 0.45 cubic foot per sub. Mounting depth 5.25 inches. Subwoofers: Dual 8, dual 10, or single 12. Location: Behind rear seat.
  • Sound Off Audio (other (sealed/ported not stated by the maker)) off-the-shelf
    SUB BOX 2001-2013 FORD F250 / F350 Super Duty Super Cab (SKU F250 EC 01-13 DUAL UTS). Sound Off Audio states fit years 2001-2013 for Ford F-250 F-350 Super Duty Super Cab. Of the 2008-2016 model years here, it covers 2008-2013 only. No outside dimensions on the product page. Published volume: .95 cu ft entire box. Mounting depth 4.5 inches. Subwoofers: dual or triple 8 inch subwoofers and dual 10. Location: Underneath rear seat.
  • Super Crew Sound (other (sealed/ported not stated by the maker)) off-the-shelf
    Ford F-250/ F-350 Supercrew Cab 08-16 Triple BTS Subwoofer Box (SKU 08F250ccbtstrip). Super Crew Sound states fit years 2008-2016 for Ford F-250/F-350 Supercrew Cab. No outside dimensions on the product page. Published volume: .50 cubic foot per sub (.75 per sub for dual cutouts), mono chamber. Mounting depth 5.25". Type: Mono chamber (sealed option standard; ported optional). Subwoofers: Fits two or three 8" or 10" subwoofers; fits two 12" shallow mount subwoofers. Location: Fits behind the rear seat. Maker notes: Will not fit if you have a power rear sliding window!; Back wall liner needs trimming/removal; cabin pressure vents must be removed; jack removal necessary. Hole cutouts 7" (8" sub), 9 1/8" (10" sub), 11" (12" sub). MDF. Speaker terminal included.
  • Super Crew Sound (other (sealed/ported not stated by the maker)) off-the-shelf
    Ford F-250/ F-350 Supercrew Cab 11-15 Console Subwoofer Box with Bucket seats (SKU 10F250CCconsoleBucket). Super Crew Sound states fit years 2011-2015 for Ford F-250/F-350 Supercrew Cab. Of the 2008-2016 model years here, it covers 2011-2015 only. No outside dimensions on the product page. Published volume: 0.60 cubic feet. Mounting depth 6.00" (based on 6" diameter magnet). Subwoofers: Fits one 8 or 10 inch subwoofer. Location: Fits between the front and rear seat. Maker notes: Must have front bucket seats, not bench seats. Hole cutouts 8" 7", 10" 9 1/8". MDF.
  • Super Crew Sound (sealed) off-the-shelf
    Ford F-250/ F-350 Supercrew Cab 2008-2012 Console Subwoofer Box (SKU 08F250CCconsole). Super Crew Sound states fit years 2008-2012 for Ford F-250/F-350 Supercrew Cab. Of the 2008-2016 model years here, it covers 2008-2012 only. No outside dimensions on the product page. Published volume: 1.20 cubic feet. Mounting depth 7.50". Type: Sealed. Subwoofers: Fits one 8, 10, or 12 inch subwoofer. Location: Fits between the front and rear seat. Maker notes: Must have front bench seats, not bucket seats. Hole cutouts 8" 7", 10" 9 1/8", 12" 11". MDF.
  • Super Crew Sound (other (sealed/ported not stated by the maker)) off-the-shelf
    Ford F-250/ F-350 Supercrew Cab 2008-2016 Dual BTS Subwoofer Box (SKU 08F250ccbts). Super Crew Sound states fit years 2008-2016 for Ford F-250/F-350 Supercrew Cab. Dimensions printed on the page: Width: 36" (Super Crew Sound does not say whether outside or inside). Published volume: 0.50 cubic foot per sub. Mounting depth 5.25". Subwoofers: Two 8" or 10" subwoofers, or single 12" shallow mount. Location: Behind rear seat. Maker notes: Back Wall liner needs to be trimmed or removed; Drivers side vent need to be removed; DOES NOT fit with the Sony sub system. It must be removed.; Box for Kicker 10" L7 will require the seats to be moved forward. Hole cutouts 8" 7", 10" 9 1/8", 12" 11". MDF. Box divider & speaker terminals included.
  • Super Crew Sound (other (sealed/ported not stated by the maker)) off-the-shelf
    Ford F-250/ F-350 Supercrew Cab 2008-2016 Dual BTS Subwoofer Box with Amp Rack (SKU 08F250ccbtsdualwar). Super Crew Sound states fit years 2008-2016 for Ford F-250/ F-350 Supercrew Cab. No outside dimensions on the product page. Published volume: .50 cubic foot Per Sub- mono chamber. Mounting depth 5.25". Type: Sealed and ported options available. Subwoofers: Fits two 8 or 10 inch subwoofers; Fits one 12 inch shallow mount subwoofer. Location: Fits behind the rear seat. Maker notes: Will not fit if you have a power rear sliding window!; Back Wall liner needs to be trimmed or removed; Cabin pressure vents may need to be removed; DOES NOT fit with the Sony sub system; Removal of jack is necessary. Amp Rack size printed as 13 x 16 (no unit marks). Hole cutouts 8" 7", 10" 9 1/8", 12" 11".
  • Super Crew Sound (sealed) off-the-shelf
    Ford F250 F350 SuperCrew Crew Cab 2008-2016 Subwoofer Box For 1-13" JL Audio 13Tw5 (BTS - Fits Behind The Seat) (SKU 08F250ccbts13TW5). Super Crew Sound states fit years 2008-2016 for Ford F250 F350 SuperCrew Crew Cab. No outside dimensions on the product page. Type: Sealed Box. Subwoofers: 1-13". Location: Behind The Seat (BTS); Forward Firing Design. Maker notes: Back Wall Cab Liner Must be Removed or Trimmed; Drivers Side Vent Needs to Be Removed; Does NOT Fit With Sony Subwoofer System - Must Be Removed. Hole cutout 12.50". 0.625" MDF. Terminals 1 per sub.

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Before you cut anything

Measure your own vehicle. Trim levels, factory subwoofer options, and mid-generation changes all move these numbers, and a box cut to a researched figure that does not match your truck is wasted wood. Where a badge reads Unconfirmed, treat the value as a starting point for your own measurement, not as an answer.