Yup...
After about a year of complaining got it fixed..
Steering gear ) rack not getting proper lubrication after a tsb that replaced steering gear.
Greasing boot / replacing steering shafts in column did nothing.
Simple Power steering flush and issue resolved.
Had nearly identical sound in a newer ford vehicle recently..
Same crap... Dealer looks at everything but replacing the leaking steering gear..
Wait a year gets worse leaks from both sides, have inspected by a Indy shop... Agree steering rack is leaking
Replaced flushed new rack as part of install . Sound gone.