[buckyball]

Disclaimer: I am new to the forum, so bear with me.

I own a large 1-ton pickup - 2005 Ford F-350 6.0L Diesel. It has a crew cab and a 6' bed. This vehicle gets 15-16 mpg in mixed highway/city driving and closer to 20 mpg on long highway trips (no towing).

I have seen some of the information regarding bed covers and tailgate up/down/off. I've also been reading the "Modifying Under-Car Airflow" articles, which I see as offering more guidance as to where to focus my efforts in lowering drag.

I have attached a series of pictures which hopefully convey the overall vehicle profile as well as some shots that provide more detail on areas I think represent a starting point for improving mileage.

I am asking for input from forum members as to prime candidates for mods and what form those mods should take.

Thanks in advance!