Speaker displacement/full size chevy box?

[Ray]

I just got 2-GNX104 subs and want to build seperate boxes for behind the seat or under. I can't seem to find the speaker displacement on this site.

Also, wondering if anyone has suggestions for box sizes for a full size '92 reg. cab Chevrolet pickup.

Thanks in advance.

[PoweredByDodge]

displacement is somethin pitiful small like 0.1 cubic foot i think... i may be wrong though... but just dig up the requirement for the woofer.. if its 1 cubic, make it 1 cubic... forget about displacement... it will NOT hurt you to make the box like .1 cubic too small... build it to spec and put 1/2 lb of polyfill in it.