Sierra 1500 2WD V6-4.3L VIN X (2004)
3. For all 15 series vehicles, relieve the tension from the park brake cable by pulling down on the park brake cable in front of the equalizer and
removing the left park brake cable from the equalizer bar.
4. For 25/35 series vehicles, disable the park brake cable automatic adjuster. Refer to Disabling the Park Brake Cable Automatic Adjuster.
5. For 25/35 series vehicles, disconnect the cable at the equalizer.