reliability ratings on a 15 year old vehicle don't mean much for what its worth. after a vehicle is a few years old what becomes way more important is how it was maintained.
also whats wrong with a 7.3 for a DD. That's one of the best engines they have ever made and holds its value.
also both the 4.6 and 5.4 ford V8s can be great. The biggest deal is the 2 piece spark plugs on the triton older than 2009 and they should already be gone. (if their not change them and the problem goes away) and distributor towers going bad. also cheap and easy fix.
