Originally Posted by SNOWBALL09
Don't know for sure but my money is inside the drivers side frame rail about where the cab meets the box.
Yup, mine is around there. I just crawled under the truck and found it pretty easily. Took me about 5 minutes to replace mine, just pressed the releases, pulled the filter off, popped the new one one.
Be warned though that if you do this with pressure still in the line you should expect some fuel spray. I lucked out and had the opportunity to let my truck sit for a couple days before I did mine, allowing the pressure the be naturally released.