[Chris D.]

Originally Posted by Haywood_U

I take it that this is not a new project?

I found this thread from 2005 - looks to also be you

Anyone make their own tonneau cover? - Page 2 - CustomTacos.com Forum

Either way, glad to see you reached your goal of 30 mpg.

I made it to 34mpg on one occurrence..

Originally Posted by Sunwapta

Heres an idea

Take an old pickup cap - and cut the roof open like a giant sunroof and then create the whaleback slope within the cap by hinging the leading edge of the cut out material? From the sides it would still look like a normal pickup with a cap. From the back you'd still have the top rear of the cap in place but the rear window would be folded inward to meet up with the hinged cutout to complete the whaletail. (Reinforce where needed.)

Lift everything back into place and latch to use the cap as originally intended.

versatility.. make it happen..

but like Haywood stated, ya need to beef things up..
I dont think it would cause drag.. the sides when the top would be down would act like a stationary rudder.. mite help stability..