Some think that these are torque to yield bolts because the shop manual says to use once and replace. They are not torque to yield bolts and can be re-used. GM wants you to replaced them because the new bolts come with loctite installed and wants to ensure you use loctite at that caliper location. Clean them up apply loctite and torque to ??? I don't have my shop manual with me and can't remember the torque value. Maybe someone else can chime in with the torque value. I seem to remember 125lb/ft. Check before you use that value.