Yeah I have done a few. Soak the bolts down with PB blaster or something similar the day before. Siphon out the gas. Disconnect all the hoses. Disconnect the pick up lead and ground wire. Keep your fingers crossed the nuts come off the bolts and not twist out of the little retainers that hold them. If they do twist or break the whole bolt will just turn and you will have off grind off the nut. Once you get all the bolts undone drop the tank.