Hey guys i am looking at buying a sled deck 7" for my 09 F350 shortbox but i have a L shaped slip tank. Is there anyone that has dont this at all with a L shaped slip tank?? What mods would i have to make to the deck?? I basically want the headache rack to sit right up againest the fuel tank and i would have to leave the tailgate down cause i realize the back legs would probely be sitting on it abit. Any info or help would be great or pics too trevormuzechka6@msn.com thanks guys