Modifying the drift
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.
Grind a drift as shown in the illustration. This is to facilitate removing the constant velocity joints
The rounding at the lower edge (R) means that the drift will not catch in the circlip groove on the drive shaft. The slightly sharper angle (approximately 60°) means that the drift has a greater mating surface against the inner ring.