Tyler98

Is there a subwoofer box enclosure for a 98 f150 to fit under the back seat.

Rift

Yeah. Tons! It's just a little more difficult to find them since the seats were different in those years and didn't allow as much room... So most of them have included seat lift kits... Which are basically blocks that will lift up the seat an inch or 2. http://www.supercrewsound.com/97f150ecdual.html
Like here for example.

Rift

again. Includes a seat lift kit. http://www.soundoffaudio.com/1997-19...fer-enclosure/

MikelT

Hi
I build my self



but it is for a 1 1/2 cap it fit perfectly and Bass is nice

Tyler98

Thank you for you all for help.