I am a firefighter here in Texas and my Dept is about to make a grave mistake in my opinion. We have been using Freightliner chassis for our ambulances for about 5 years now with mostly excellent service. Some of the upper administration are thinking of purchasing Ford 1 ton chassis or possibly F-550 chassis to use in our new ambulances. Their reasoning behind it is that our neighboring city recently bought one and "theirs looks cool". They do not have to drive them, nor do they have to hastle with taking them to be serviced everytime the POS has to get repaired. The units we currently have run Cummins and Allison Trans. Which as we all know is near bulletproof, with the exception of minor mishaps. Could someone please point me in the right direction in order to dig up substaintial documented problems with the F-350 through F-550 with the Ford PSD/ Auto transmission combo. I really would like to at least try to convince them to stay with a comperable chassis! No PSD Needed! Thanks!