Ford 2003 Mustang Workshop Manual page 773

6. Install the nut and the tie-rods ends. Align the marks.
Apply silicone dielectric compound to the front wheel spindle tie-rod threads.
7. Remove the steering gear from the special tools.
8. Install the steering gear mounting bracket housing insulators.
Install new steering gear mounting bracket housing insulators as necessary.
The large end of the metal sleeve must be positioned downward.
Check that the mounting surfaces are clean and free of foreign material.