Follow up: the cut-off was April 1995.




Raise the vehicle and install safety stands. Remove caliper and brake pads.
Remove the hublock assembly. See: Wheel Hub (Locking)\Service and Repair
For Bronco and all F-Series 4x4, except F-250 and F-350 built before April 1995, remove C-ring and three washers.
Remove the outer locknut with Bronco or Spanner Locknut Wrench D85T-1 197-A or equivalent for F-250 and F-350. Remove the lockwasher.
Using spanner locknut wrench while rotating the front disc brake hub and rotor (1102) back and forth, tighten the inner locknut to 68 Nm (50 lb-ft) to seat the bearing.
Back off the locknut 90 degrees.

NOTE: Hole pattern of lockwasher is offset with keyway to provide half-position settings by flipping washer over to obtain closest hole.



Install the lockwasher so the key is positioned in the groove of the front wheel spindle (3105). Tighten the inner locknut, aligning the pin into the nearest lockwasher hole.

Install the outer locknut and tighten to 217-278 Nm (160-205 lb-ft) using Hub Locknut Wrench T83T-1197-B for F-15O and Bronco or Spanner Locknut Wrench D85T-1197-A or equivalent for F-250 and F-350.
Check the final end play of the front wheel spindle. It should be 0.00-0.11 mm (0.000 0.004 inch).
Torque required to rotate the front disc brake hub and rotor is not to exceed 2.3 Nm (20 lb-in).
For Bronco and all F-Series 4x4, except F-250 and F-350 built before April 1995, install three washers in order: metal washer first, plastic washer second, and splined washer third. Install C-ring.
Install the hublocks. See: Wheel Hub (Locking)\Service and Repair
Remove the safety stands. Lower the vehicle.