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Discussion Starter #1
Hey guys, figured I would throw this up here, and I know a few guys have done this, but I gave it a whirl myself.

Honestly, it was pretty damn easy, and even a novice with fiberglass could do this. So, if you have a jigsaw, some MDF/Plywood, your fiberglass and resin and a little patience...then you're good to go.

What I did in my case, was remove the cover over the storage compartment. And start working. I made a template of the frame using cardboard, then transferred that to a piece of plywood I had laying around. Then made a Identical outer shape for the top. I use the same piece of cardboard to make the lower frame as well.

Once, I had that all cut out, I got the sander out and smoothed the outer surface of the frame to be nice and flush. Then made sure it was all good to go in the truck.

Then, like everyone else, I taped the crap out of the carpet, and started going to town with the fiberglass. I used as much cloth as I could, then used the matting in smaller areas..just seemed the cloth worked in flat areas, and the matting laid down nicely in the tight areas.

Let it dry, and go after for a few more layers.

Once it was all dry, I sanded down the frame so the top part plywood would sit nice and flush. I still used some liquid nails to make sure there were no leaks. Screwed the two panels together, and called it good.

I personally left some of the tape on there because I was lazy, and honestly, it seemed to kinda help keep the enclosure fit nice and snug in the "pit".

Carpet for a nice clean finish...and here ya go.








 

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Great job! Nice pics.

I really want to build my own, but go full width, with a center divider, and build it "taller". But I found the full width Fox Acoustics box... and am deciding between building, or buying...
 

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Nice work! I've had this same project on my mind for the past couple weeks now. you've inspired me! Question, did you have to install spacers to lift up the back seat at all?
 

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I'm wanting to do this myself, but for a pair of Sound Qubed SA8's. The question is how do you determine the total volume for a irregular shape like that, and these 8's need a ported enclosure so I gotta figure that out too.
 

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Discussion Starter #9 (Edited)
I'm wanting to do this myself, but for a pair of Sound Qubed SA8's. The question is how do you determine the total volume for a irregular shape like that, and these 8's need a ported enclosure so I gotta figure that out too.
I guess you could make the fixture, and fill it up with water, then measure the volume. A liter of water is a liter of air. Then convert to SEA.

If anyone is interested in the box, I'm going to sell it. I got rid of the Ram, way too many problems with it for such a new truck( 2 AC units, transmission, water pump, radiator, power steering pump, rear end, exhaust manifolds...the thing was just a POS for only being a few years old, and very easy miles on it), and went with a GMC.

PM me if you're interested.
 

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I have a few questions. How do you actually attach top plywood to the fiberglass that was molded? Also are the subs separate Chambers or do they share the airspace?
 

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Discussion Starter #13 (Edited)
I have a few questions. How do you actually attach top plywood to the fiberglass that was molded? Also are the subs separate Chambers or do they share the airspace?
It's just screwed into place with deck screws. It's only a single sub. No porting.

Yes, I still have the box. Sorry for the delay. I rarely visit this site since I no longer own the Ram.
 

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I guess you could make the fixture, and fill it up with water, then measure the volume. A liter of water is a liter of air. Then convert to SEA.

If anyone is interested in the box, I'm going to sell it. I got rid of the Ram, way too many problems with it for such a new truck( 2 AC units, transmission, water pump, radiator, power steering pump, rear end, exhaust manifolds...the thing was just a POS for only being a few years old, and very easy miles on it), and went with a GMC.

PM me if you're interested.
1 cu. Ft. Of air = 7.54 gallons! That almost 60 lbs. Of water lol
 
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