Bought this for my 05 DAK QC.
Original cost: $900
Traded the 05 for an 08 with factory rails... sadly I can't switch it over.

Very easy to install (less than 45 minutes)... 2 side rails attach with clamps and rolltop well needs 2 small holes drilled for the bracket. Add a tailgate seal and lock and your bed becomes a waterproof vault. Black powder coated aluminum... can support 400+lbs on closed surface.
After 4 years on my 05 it's not cosmetically perfect, but it's still 100% functional.
Latch mechanism can only be accessed from an open tailgate... so security is great.
Selling it for a song...
$350.00
The new model is labeled the G2 and looks just like mine... it sells for over a grand/shipped.
Come over with your truck and I'll even help you install it.
I'm in Monmouth County NJ... photos and phone to serious buyers.
Shoot me a pm or email, if interested.

THIS WILL FIT A SHORT BED QUAD CAB 3rd GEN DAK (without factory rails on the 08-09 crew)

 

Got any pictures of it installed or a full product name so I can look it up? I'm interested in it.