Either of you still wihin warranty? If so, take it back to the dealer and let them fix it. There may even be a TSB about it. See,s to me a long time ago RichP posted something about a TSB covering a problem with the early plastic tanks. It wasn't pickup orientation, it was something about the plastic dissolving and clogging the filter -- I think.
In any event -- it should not start cutting out when you have a quarter of a tank of fuel, and IMHO that's a drive line issue, so take it to the dealer and let them fix it. Even if you're out of warranty -- call Chrysler's 800 number and make a big stink about how it's a safety issue, it could die in the middle of a highway and cause a chain reaction collision, yada yada. It really is unsafe, and they should fix it.