A8 Quattro Sedan V8-4.2L (BGK) (2006)
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Thread in bolts - A - and - B - hand-tight (support bracket should be in full contact with final drive). Then tighten bolt - A - and bolts - B - (in that
order) using a torque wrench.
If the position of the drive shaft in relation to the drive shaft flange was marked before removal, re-install drive shaft in same position => [ Driveshaft
] See: Drive/Propeller Shafts, Bearings and Joints/Drive/Propeller Shaft/Service and Repair/Removal and Replacement/Rear Final Drive 01R (09EA
Transmission)/Driveshaft.
If there was a factory marking on the drive shaft, measure the radial runout at the drive shaft flange on the final drive => [ Radial Run-Out at
Driveshaft Flange, Measuring ] See: Service and Repair/Procedures/Rear Final Drive 01R (09EA Transmission)/Radial Run-Out at Driveshaft Flange,
Measuring. Install the drive shaft so that the paint marking on the drive shaft is aligned with the new marking on the flange.
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Replace gasket on driveshaft flange and bolt driveshaft onto rear final drive => [ Driveshaft ] See: Drive/Propeller Shafts, Bearings and
Joints/Drive/Propeller Shaft/Service and Repair/Removal and Replacement/Rear Final Drive 01R (09EA Transmission)/Driveshaft.
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Top off gear oil in rear final drive and check oil level => [ Rear Final Drive, Checking Oil Level ] See: Fluid - Differential/Service and
Repair/Procedures/Rear Final Drive 01R (09EA Transmission).
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Install bottom cover on rear final drive.
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Install rear section of exhaust system.
Tightening torques