under the seat subs

[CUSTOM_1O]

ok so whos mastered the dimensions of a box that will fit right under the seats in the c10 models from 67-72 i have a 69 and i was just wondering if anyone new what i could do to get a setup of either 2 10's or 3 8's

possibly using mtx or jl audio anyone have advice to what type of speaker and what model and how to create a box for one of these setups if so the info would be greatly appreciated...

i dont want to settle for a little bit of bass i want mine to knock as hard as possible


thanks