Section 218 (Disc Brakes & Drum Brakes): Overhaul: Notes
WARNING: This page is about a different car, the 2004 Toyota Corolla and 2003 Toyota Corolla. However, it is still accessible from the selected car via links, so may be relevant.
NOTE:
When overhauling caliper, if cylinder bores are pitted or scored beyond repair by light honing, replace entire assembly.