Thanks for all the information. I went to my local Ford dealer and talked to the service manager. He pretty much said what rforsythe said. If they install the parts they are only covered under the standard 12 month/12,000 mile warranty. I will install the parts myself as ford wants over $600 in labor to install them. Just to have them enable the second alternator in the PCM is one hour of diagonistic fee or $111.50. I was able to talk to a tech and he told me it takes all of 5 minutes to turn it on in the PCM. Whats a guy to do? I sould have ordered it with duals from the factory I guess.