I finally took the plunge and decided to change the front struts on my wife's 2010 XC60 T6. I've replaced Volvo struts on a number of occasions in the past and did not anticipate any problems. The other Volvos that I have worked on attached the strut to the steering knuckle with two large bolts. While corrosion may make these a bit of a challenge, the design is straight forward. After I removed the wheels on the wife's ride I discovered that the design had changed. Now the strut is clamped to the steering knuckle with a single bolt, but the knuckle must be separated from the control arm in order to get the strut out of the knuckle. The ball joint design is unlike those that I have dealt with as well. The ball joint is riveted to the control arm and the stem is clamped to the steering knuckle with a single bolt. I have been unable to push the control arm down to free the ball joint from the knuckle. Volvo has two procedures that I am aware of, using a long rod to lever the control arm or using a ratcheting strap to pull it down. Neither method has worked for me. Any suggestions?