18A1809A AC Delco Brake Disc Rear Driver or Passenger Side RWD FWD AWD for STS
AC Delco Brake Disc –. 2005-2011 STS Base AWD, With 5 Stud Rotor. 2005-2011 STS Base RWD, With 5 Stud Rotor. 2011 STS Platinum AWD, With 5 Stud Rotor. 2011 STS Platinum RWD, With 5 Stud Rotor. 2003-2007 CTS Base RWD.