Just got a 1993 silverado single cab and i was looking into getting some sd-2s. I wanted to know if i could get two 12s behind seat or should i just go with two 10s. Also will i be able to do ported or sealed. I took measurements and the space that i have is from back wall to back of seat 3 1/2 inches at top and 8 inches at the bottom. i got 18 inches in height and 62 inches from side wall to side wall.
