I have an 06 6.0 truck quit working so I took it to Ford and they told me the oil pump was bad 1350.00 installed minus core. They then said that the top end of the motor would most likely need replaced because it was dry'd out do to bad oil pump. In that case the bill would be more than the truck is worth. Is this a common issue or does anyone care to shed some light on the situation? I thought of replacing the engine with a 12 valve that I have instead of another 6.0, good idea or bad idea idk.