RacingDiffs Front differential bearing kit for Audi Q7

How to tell if your differential needs bearings replacement?
Characteristic noise from differential/transmission occurs during acceleration and coast (engine breaking). To distinguish differential bearing noise from wheel bearing noise steer left-right like you are warming up tires for the race. If the noise changes its intensity than it is a wheel bearing. If intensity of the noise remains the same, that means differential bearings needs to be replaced.
 
RacingDiffs Components are OEM quality.

Front differential (0AA409505D) set fits following models:
Volkswagen Touareg 2002-2010 (all engines with 6-speed gearbox)
Audi Q7 pre-facelift 2005-2010 (all engines with 6-speed gearbox)
Porsche Cayenne 2003-2010 (all engines with 6-speed gearbox)

The kit includes:

1x Crush sleeve
1x Small pinion bearing
1x Large pinion bearing
2x Side bearing
1x Input flange oil seal
2x Output flange oil seal