my 98 expedition hood is good after 14 years and original paint. but i have repaired/painted a few 03-06 expedition hatches with corrosion issues. weird.
it will be interesting to see if the weight savings will make a marked improvement.
2011 F-150 Limited #3679 6.2 V8 4x4
2006 Chrysler 300C 5.7 HEMI AWD
2002 Excursion Limited V10 4x4
1991 F-250 lariat 5.0 4x4 (auto)