looking for a sub box for my brothers truck. Is a half ton ex. cab the same as an HD? Anybody have any plans or dimensions for one that the have built? Don't really want to spend 2-300 dollars when I think I could make a nice one myself.

check e-bay, there is a guy on there selling box and 2 speakers for less than $300. 10' RF IIRC

I have two 12" downfire sealed boxes that fit under the back seat in my truck I'm looking to get rid of. They are rhinolined and have Alpine type R's in them and sound really good. They changed the seat bracketry in 05' so they don't let my seat go all the way down unless I move them forward into the footspace but fit great in my '01. PM me if you are interested, I would be willing to let everything go cheap.