Shortly after acquiring my LJ a few months ago, I did a quick overhaul of the factory sound system. Nothing crazy just wanted something that worked and had USB and AUX inputs and improved sound. A new head unit and speakers all around kicked things off. My Jeep didn't come with the subwoofer option but I decided to add it shortly after the initial overhaul. Picked up a complete rear console on Ebay two weeks ago for the box and wiring pigtail and proceeded to make the harness extension and adapters as well as figure out how to shoehorn the new Kicker driver into the factory sub box.
I've seen some posts and videos of people removing plastic ribs from inside the box to get their chosen drivers to fit. I didn't see depth as much of an issue in my case as this particular Kicker is only 1/8" taller than the box depth as is. But since the Kicker has a bit of a fat booty due to its sizeable magnet, it actually interferes with the recess in the top of the box that allows for the console tray above. I designed an adapter ring that shifted the new driver as low as possible in the factory sub opening, kicked the driver 1/8" out at the top and 1/2" at the bottom to clear any offending box innards, had a small relief for the wiring harness and picked up on the four factory mounting points.
A 3D sketch of the designed adapter ring:
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Designing the ring as a solution was great, but without a means to produce it essential a pointless exercise. Fortunately a friend on the left coast recently acquired a 3D printer and was keen to have a crack at it. So I obliged and sent him the file...
The ring early on in the printing process:
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The finished ring fresh off the glass printing platter, with raft and supports intact:
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The ring was posted to me in the above state last Friday and arrived before noon today (on the right coast). Here's the adapter ring cleaned up and prepped for installation:
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Adapter affixed to the sub box with factory screws:
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Sub driver attached thru ring into box:
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Fin.
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I used a foam tape seal between each component and packed the sub box with batting before reassembly. Fun project and collaboration with a buddy long distance was a bonus.