View Full Version : Custom encloser for Ext. cab SIlverado's??

Chad Ennis
05-09-2004, 02:58 PM
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Just wanted to see if anyone has any pictures of custom fit boxes made for ext. cab Chevy trucks??? Trying to get some different ideas!!!!

05-10-2004, 01:50 AM
wut do you plan on running? JL audio makes some, Q-logic makes one, and there are a few other ones. mostly downfiring and 1- 10"- 12" sub, i have seen a few that can hold 2 (i believe the q-logic one can hold 2-10" subs but its expensive). Ive been trying to design one for my sierra ext. cab for about a week. if you go that route this site has great calcs. for volume and such http://www.the12volt.com/caraudio/boxcalcs.asp#wed it really comes down the the sub that you plan to put in it, its specs directly affect how to build the box (atleast thats how I'm doing it) for example I'm putting 2 JL W6v2's forward firing in 2 boxes that measure Width: 18"; Height Front: 12" ; Height Rear: 11" ; Depth: 11" ; And using 3/4 inch material which should give me 0.97515ft^3 of internal volume each. but to make this box im going to have to raise the rear seat atleast 3" im going 3-1/2" to alow for a margine of error. its pretty hard to fit subs under our backseats. most people just take them out

Chad Ennis
05-10-2004, 10:12 AM
Hello, I have done that before...I had 2 JL pre made boxes for 12" subs under my seats!!! I took it out and made a new box myself with 4 12" Cadence subs inverted but did not have enough room on top for the ports, so I had to put them on the front of the box and I think it is hurting my output!!! Good luck!!!

05-10-2004, 10:20 AM
www.pavementsucks.com look at reader rides for plyhammer. downfiring subs with a homemade 3 1/2" seat lift. 1 cube per sub sealed.

03-22-2006, 08:43 PM
i have 2 custom boxes from jl called the vantage serires they dont make them anymore and they hold 2 12" subs with about 1 cubic ft

03-22-2006, 08:46 PM
proboxrocks.com.......best prefab ive seen

03-22-2006, 09:37 PM
i might have the stupidest install of them all under my silverado...they had to jack up my seat 3 inches and i get roughl 1.1 after displacement..biggest they could do..

03-22-2006, 09:41 PM
I just noticed this thread popped back up, so I thought I'd share a few pics that I have of my install. It's a 2001 GMC Extended cab of course. FWIW, this is my first install, and it's not complete. There are some things in the pics that have already been fixed (terminals on the xovers) and some that need fixing. I have learned a lot on these boards, and need to do some more work.

Anyway, check it out:
Install Pics (http://www.throttlegrip.com/pics/gmc)

And here's a pic of the box that still needs covering (there are a few more on the above link):

03-22-2006, 09:52 PM
I ditched my rear seat in my 2002 Xcab..... The seat is usless anyways
2 12s ported,2 amps,and plenty of room leftover