Transmission (Aw50/51 AWD; Aw55-50/51SN; 2004-2006): Design: Differential
WARNING: This page does not describe the selected car, but rather 8 other vehicles, including the 2006 Volvo S80, 2005 Volvo S80, 2004 Volvo S80, 2003 Volvo S80, and 2002 Volvo S80. However, it is still accessible from the selected car via links, so may be relevant.
The differential distributes power equally between the drive wheels, even if they are rotating at different speeds.
The differential consists of the differential housing, large and small side gears, shaft journals and thrust washers.
The differential has 6 gearwheels. The differential housing is completely sealed so that if a drive shaft is removed no dirt can penetrate and no oil can run out.