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Home >> Ford >> 2004 >> Excursion 6.8 S, 4WD >> Repair and Diagnosis (Single Page) >> Drivelines & Axles >> Differentials & Drive Axles >> Front Drive Axle/Differential -- Excursion & F250-F550 Super Duty >> Diagnosis And Testing >> Front Drive Axle >> Diagnostic Routines >> Diagnostic Routine - Noise (Clunk) On Changes In Speed Or Direction Of Power

Diagnostic Routine - Noise (Clunk) On Changes In Speed Or Direction Of Power

DIAGNOSTIC ROUTINE - NOISE (CLUNK) ON CHANGES IN SPEED OR DIRECTION OF POWER

Possible Component Reference/Action
Axle and pinion system Measure total backlash. If end play and total backlash are within specification, INSTALL a new differential case assembly.
Differential pinion shaft INSTALL a new differential pinion shaft and pin.
Pinion bearings INSTALL new pinion and differential bearings and bearing cups.
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