Town Car V8-4.6L VIN W (1997)
7. Install Dial Indicator with Bracketry TOOL-4201-C or equivalent. Check and note ring gear runout.
8. If the runout is within specification, the original out-of-specification runout was caused by insufficient differential bearing preload. If the runout
exceeds specification, go to Step 9.
9. Remove differential case from the rear axle housing.
10. Remove ring gear using a drift that will bottom in ring gear bolt holes. Strike at alternate holes around gear.
11. Install differential case assembly in rear axle housing without ring gear.
12. Check differential case runout again. If the runout is now within limits, the ring gear was out of specification and the differential ring gear and
pinion should be replaced. If the runout is still excessive, the differential case is damaged and should be replaced.
NOTE: The differential ring gear and pinion are matched and must be replaced as a set.
