 I bought my Expedition when it was 
nearly 4 years old and had 60K miles 
on it.  I tow an 8,000lb trailer 
that's really a little too much for 
the truck, but I take it easy and the 
truck does fine.  I got the hitch 
replaced as part of a recall and have 
regular maintenance done.  The truck 
is a gem and I'll be disapointed to 
part with it when I finally do trade 
it in.