Mysterical Window Sticker

Bought this truck in 99 with 50 k miles, xlt 4x4 although not labled 4x4 on truck Dodger blue, a surprisingly strong  v-8 for the small engine. It has a 20 bolt trans,Power everything Blade / centerline wheels, Body has not been touched!  Very heavy duty. I now have 220 k on it and experiencing minor trans wear. Best vehicle I have owned, has been everwhere. Wife wants me to get rid of it. I want to rebuild it. Big dicision. On my window is a sticker which reads: Michigan Truck Plant, Expedition F Series, 3 Crew Operations. I would like to know what this means. Dan from California Navy child.