NEVER buy an extended warranty or maintenance plan from the dealer you bought your truck from...
Its EXTRA money in their pocket, period.
i'll tell you WHY.
I bought the PREMIUM MAINTENANCE PLAN for $940 from a FORD DEALERSHIP in Michigan. The sellling dealer wanted $1295 (no budging on the price either).
i bought a FORD ESP for $665 from the SAME ford dealership in Michican for $665. The selling dealer wanted $1195.
you can find better deals if you are considering these. Make sure they are "GENUINE FORD", and buy them from another FORD dealer.
Check out http://www.zeiglerfordesp.com/