It is just rotator cuff surgery. I have never had any kind of real surgery before or missed more than 2 weeks work in my life... I guess I am getting old... Thanks though... I could use some TPMS sensors for the '08 E-350 MB I just bought. I guess I should call the guy and see what they would cost...The XF can wait...as they just get driven to cars shows for the most part. Only been to the track once this year...