Tacojedbob,
Get the FASS system and be done with it, the Dodge guys found out exactly what you have, the gasoline pumps just do not last espeically in winter. Even in summer the viscosity of diesel is much different than gasoline and those pumps are not up to the task. Plus as injections pressures rise the filtration performance is critical, the FASS systems have a water seperator and filter as well as remove entrapped air in the diesel fuel for better injection efficiency too! They cost more than some other systems but once you see it, install it and use it you'll know why. If you have any questions on them let me know.
Mark @ DPPI