Crown Victoria V8-4.6L CNG SOHC VIN 9 (1999)
4. Engage the differential pinion gears opposite the differential side gears.
5. Rotate the differential pinion gears to align with the differential pinion shaft bore.
6. Insert the differential pinion shaft.
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Align the hole in the differential pinion shaft with the hole in the differential case.
NOTE: If a new pinion shaft lock bolt is unavailable, coat the threads with Threadlock(R) and Sealer EOAZ- 19554-AA or equivalent meeting
Ford specifications WSK-M2G315-A5 and ESE-M4G204-A2 prior to installation.
7. Install a new differential pinion shaft lock bolt and tighten finger-tight.