Town Car V8-4.6L VIN W (1997)
Ring Gear: Testing and Inspection
Inspection After Disassembly
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Examine the pinion and ring gear teeth for scoring or excessive wear. Worn gears cannot be rebuilt to correct a noisy condition. Gear scoring is the
result of excessive shock loading or the use of an incorrect lubricant. Scored gears cannot be reused.
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Examine the teeth and thrust surfaces of the differential side gears. Wear on the hub of the differential side gear can cause a chucking noise known
as chuckle when the vehicle is driven at low speeds.
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Wear of splines, thrust surfaces or thrust washers can contribute to excessive driveline backlash.