From what I found in my manual there is a drain plug towards the back of the tank. There are also the fuel pipes towards the front but that may not be covered by the skid plate. I have a '90 V6 and will go check under the Monty to see if I can find any other problems to look for. My haynes manual gives a good diagram of the tank and all related parts. If it is a beach buggy and has had prolonged exposure to salt water that could also be a problem. You might want to check under there to see if there is any more rust and if so that could answer your question. If I find anything else I will post it. Good Luck!<P>Raphael