Cal Metal,
That was Ford's famous "lubed for life" suspension. However long it lasted (and usually not long) was its' "Life."
I remember customers at our dealership *****in' about that one.
The other great one was the early 80's "lifetime service guarantee" (now copied by GM goodwrench) that covered some parts for life. I vividly remember a dealer group that was opposed to the program distributing a cartoon that had a customer approaching a service manager and asking to have his "lifetime service guarantee" honored, where upon the service manager pulled a gun and shot the customer....end of lifetime, guarantee null and void!
Rick