Maybe you guys can help - after doing some work lifting one side up at a time, I notice a continuous drip of gas coming from somewhere around the right side of the engine, down onto the diff, when the engine was idling. I set the truck down to check it out and the leak stops - couldn't find where it was from. Drive it a bit, keep checking, nothing. Dry as a bone. So I guess it was some little quirk, who knows? The off-camber position... whatever. It's gone for about a week. Today I park at work - there it is again! I get back home, it's gone!!! I figure a leak is a leak: why does it come and go? Anybody have this happen? Any idea what to look for?