What about 4.56's or 4.88's? The Excursion is a big beast and anything you can do will be of benefit. I was at the tail end of my car sales career during the last few years of production. They were quite popular with the military contractors like Blackwater and such that would get them retrofitted with armor plating and then send them over to Iraq.
They were the poster child for the enviromentalists about how they were destroying the world, but they did serve a need if you needed to tote a lot of people around. The 7.3 diesels still bring STUPID money if they're in any kind of decent shape.
