S10/T10 P/U 2WD V6-4.3L VIN W (1997)
It is very important that the rotor surface be made non-directional by dressing the rotor surfaces with a sanding disc tool such as Accuturn 433179
Non-Directional Swirl Finisher, Ammco 8750 Safe Swirl Disc Rotor Grinder, or equivalent, using 120 frit aluminum oxide sandpaper. Sand each rotor
surface with moderate pressure for a minimum of 60 seconds. If the brake lathe is not equipped with an adequate non-directional finishing tool, an
alternate method is to use a sanding block with 150 grit aluminum oxide sandpaper. With the rotor turning at the equipment manufacturer's highest
recommended cutting speed, sand each rotor surface for a minimum of 60 seconds using moderate pressure. After the rotor has been sanded, clean
each surface with denatured alcohol or a suitable brake cleaner. The finished rotor surface should be as close to that of a new rear brake rotor as
passible. Failure to obtain the best possible finish may affect braking performance.
NOTE: Rear brake rotors should always be replaced if turning will result in a rear brake rotor that does not meet manufacturer specifications for
minimum thickness. When installing new brake rotors, do not refinish the surfaces of these parts. New brake rotors have the correct level of surface
finish.
Refinishing Rear Brake Rotor Parking Brake Surface
The rear brake rotor parking brake contact surface should not be refinished. If the parking brake system cannot effectively hold the vehicle and all
other parking brake components are functioning properly, replace the rotor.
