So I am working on a head gasket job on a 2011 LR4. I've been able to track down all the specialty tools except the socket driver needed to remove and replace the head bolts. My searches tell me it's a RIBE type, but nothing I have found indicates the size. I'm guessing a #9 or 10 and will just order on snap-on or Matco and do trial and error if no one knows.