Other Fuel System Tank Mounting problems of the 2004 Chevrolet Tahoe

Smelled gas coming from the rear passenger side of the car (on exterior) and was informed that the metal ring molded into the plastic tank where the sending unit mounts to the tank had rusted out and gas was accumulating in the "bowl" that the connection is in. Rusting is a result of water accumulating in the "bowl" where the unit mounts and not being able to drain out. Did some online research and found that a number of Tahoe owners have had the same issue. Was also informed that Chevrolet determined this was an issue and changed the design of the tank in future models to remove the metal ring that the sending unit mounted to. Cost to repair at Chevrolet and independant garage $2,000 or more.