1 10W7 would fit behind the pass seat with teh box extending behind the drivers seat. JL also makes them in 8s now too.

 

I don't get what you're saying about how a 10W7 would fit. Any pics or could you explain some more?

 

The guy that is going to build the sub box for my truck said he built a box for a single 10 in a 3500 dually crew cab. IDK exactly how it would work. You could definately fit 8s behind the seats. Here is the link to their site and the measurements. Break out the tape measure and figure out what you can fit. Either way the W7 series will give you better sound quality and hit harder IMO. http://mobile.jlaudio.com/products_s....php?page_id=3

 

Here is a link to a thread a while back that had some cc stuff in it
https://www.performancetrucks.net/fo...light=crew+cab
If you havent figured out how/what you are going to do by next week Ill call my stereo guy and see what he says. Since you are in Houston he could do it for you. Very reasonable prices. Anyway Ill try and help you with any other ?s but its time to go out and have some fun.