[cmax87v3500]

ya polyfill was in the plan, and i see you point, hmmmm well i think itl be close enough, gunna have to be i guess, ive read a review on the xr-w12f and the person says hes got it in a .68 cu ft box and it works good, and he dosent have polyfill so??? hopefully it will work out ok lol thats the bad part about truck like these, just no room in them lol but gotta work with what ya got. idk if you knew im using 1/2 mdf, im not sure how much of a differencein volume that would make over 3/4 or something. im not any good at calculating the cu ft stuff lol ill post pics of the build and seat/ sub install if and when i get there. thanks again everyone!
-Clint