i purchased a ford truck and i have a few problems with it. The one that i have to fix now is the gas leaks. Well it has two tanks and they both seem to leak.The truck was used for plowing and there is alot of rust under neath the truck should i try to fix it or take it straight to a shop. Also i was wondering if it could be a line problem because bouth tanks are loosing gas fast. My new used Ford f 250 87 4x4 came with a western 7'6" pro plow and i paid 4800 and its going to need an engine soon. Did i overpay and should i try to fix it myself.