CTS V8-6.0L (2007)
Brake Rotor/Disc: Testing and Inspection
Brake Rotor Assembled Lateral Runout Correction - Correction Plates
Brake Rotor Assembled Lateral Runout Correction - Correction Plates
Tools Required
*
J 39544-KIT Complete Torque Socket Set-10 Pieces, or equivalent
*
J 45101-100 Conical Brake Rotor Washers
Caution: Refer to Brake Dust Caution.
Important:
*
Brake rotor thickness variation MUST be checked BEFORE checking for assembled lateral runout (LRO). Thickness variation exceeding
the maximum acceptable level can cause brake pulsation. Refer to Brake Rotor Thickness Variation Measurement. See: Brake Rotor
Thickness Variation Measurement
*
Brake rotor assembled lateral runout (LRO) exceeding the maximum allowable specification can cause thickness variation to develop in
the brake rotor over time, usually between 4 800-11 300 km (3,000-7,000 mi). Refer to Brake Rotor Assembled Lateral Runout
Measurement. See: Brake Rotor Assembled Lateral Runout Measurement
1. Rotate the brake rotor to position the high spot, identified and marked during the brake rotor assembled LRO measurement procedure, to face
upward.
2. Remove the J 45101-100 and the lug nuts that were installed during the assembled LRO measurement procedure and/or the indexing correction
procedure.
3. Inspect the mounting surface of the hub/axle flange and the brake rotor to ensure that there are no foreign particles or debris remaining.
4. Select the correction plate, following the manufacturer's instructions, which has a specification closest to the assembled LRO measurement.