Brake Booster Push Rod
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.
Check and adjust clearance between brake booster push rod and master cylinder piston, if either unit is replaced or overhauled. See Fig 1. Clearance should be zero. If clearance is not as specified, adjust male portion of push rod while holding female portion of push rod.