GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Chevrolet 🢒 1997 🢒 Corvette 🢒 General Information 🢒 General Information 🢒 Rear Parking Brake Shoe and Lining Adjustment

Adjustment Procedure

Tools Required

J 21177-A Drum to Brake Shoe Clearance Gauge

Important: 

   • Adjustments are not normally necessary after replacing the park brake lever or cables. The park brake is adjusted automatically by pulling on the park brake lever.
   • Never operate the park brake lever while the rotor is removed.

  1. Remove the brake rotor. Refer to Rotor

    2. in Disc Brakes.

  2. Check if the brake drum inner diameter is within specifications.

    3. Important: If the gap between the adjuster nut and screw exceeds 5mm during the adjustment procedure, the brake shoe assembly must be replaced.

  3. Adjust the parking brake shoe to drum clearance to 0.38mm (0.15 in.) using J 21177-A .
  4. Center the brake shoe.
  5. Measure the brake shoe lining diameter across the horizontal centerline using J 21177-A .

    6. The diameter should measure 189.6mm to 189.8mm

  6. Install the brake rotor.
  7. Install two wheel nuts to retain the rotor.

    8. Tighten
    Tighten the wheel nuts finger tight. Do not overtighten.

  8. Cycle the park brake lever three times.
  9. Rotate the rotor and check for drag.

    10. If drag is present recheck and adjust the shoe to drum clearance.

  10. Install the rotor. Refer to Rotor in Disc Brakes.