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Home >> Mercury >> 2007 >> Grand Marquis V8-4.6L VIN W >> Repair and Diagnosis >> Transmission and Drivetrain >> Differential Assembly >> Testing and Inspection >> Component Tests and General Diagnostics >> Drive Pinion Stem and Pinion Flange

Drive Pinion Stem and Pinion Flange

Drive Pinion Stem and Pinion Flange

Check the pinion flange runout when all other checks have failed to show the cause of vibration.

One cause of excessive pinion flange runout is incorrect installation of the axle drive pinion seal. Check to see if the spring on the seal lip has been dislodged before installing a new ring gear and pinion.
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