89 Dakota 3.9 2WD. I've had an odor of gas from the area of the fill tube and rear wheel opening for some time, but no actual leak. I put the trucks rear wheels on ramps to work on the shocks. When I started the engine to drive off, I had a heavy leak of gas cascading down the tank. Shut the engine off and it stopped. Just trying to narrow down what the issue is.

 

Check the fuel lines on top of the fuel tank... Sounds like one is leaking....