Expedition 4WD V8-4.6L SOHC VIN W (1999)
15. Install the setscrew.
16. Remove the valve housing from Bench Mounted Holding Fixture and position the piston on the worm gear.
17. WARNING: Hold the ball return guides until the cap or clip is reinstalled. Failure to hold the guides will result in a trapped ball or balls,
which could cause a vehicle accident. If the ball guides become unseated at any time, remove all the balls and repeat the procedure.
Install the steering gear ball return guide on the piston.
18. WARNING: The correct number of balls are required for proper gear operation. Count the balls and insert each carefully.
WARNING: To make sure the balls are properly installed, rotate the steering gear input worm gear and rack from one end of travel to
the other without allowing the poppet adjuster to contact the valve housing or moving the valve housing pilot face more than 69.1 mm
(2-3/4 inches) from the input end of the rack piston. If the steering gear input worm gear and rack cannot be rotated, reinstall the balls. If
a steering gear is installed with a steering gear input worm gear and rack that cannot rotate, the steering gear will not function correctly
and steering and gear failure can result.
