First off, have someone else turn the key while you check for spark, or better yet use a remote starter, that way you can see.
Are you sure if it's getting fuel? is the fuel stale? Why was the truck parked in the first place?
With it sitting that long be sure and check the brake component's, hose's, belt's. Be aware of condensation in the oil.
When in doubt :DON'T
Valley Station, Kentucky
Dream EXPression Racing