These are the subwoofer boxes off of ebay
http://cgi.ebay.com/ws/eBayISAPI.dll...780276047&rd=1
I bought them but decided to sell my Titan before a had a chance to install them. All I did was put them in to see if they fit well. The fit is good and seem to be pretty sturdy. The holes are for 10" subs. $100 shipped. Contact me at
drr145@psu.edu or PM me. Thanks.
PS- they fit a King cab but I assume they should also fit a Crew Cab.