I was installing my catback the other day and noticed that there was ALOT a fluid coming from somewhere around the lines that run above the driveshaft near the differential. What lines are those? Looks like the leak has been there for quite awhile based on how much fluid was on the chassis. Any help is greatly appreciated.

 

Their either the brake lines that t off to the wheels or you are refering to the fuel and return lines. It's not clear exactly where you are looking. The fuel lines have metal lines connected to plastic near the ends. Describe what is near the leaking points.