Brake Rotor Assembled Lateral Runout Measurement: Notes

WARNING: This page is about a different car, the 2008 Cadillac CTS. However, it is still accessible from the selected car via links, so may be relevant.

Tools Required

J 39544-KIT Torque-Limiting Socket Set, or equivalent. See Special Tools .
J 41013 Rotor Resurfacing Kit. See Special Tools .
J 42450-A Wheel Hub Resurfacing Kit. See Special Tools .
J 45101 Hub and Wheel Runout Gage. See Special Tools .
J 45101-100 Conical Brake Rotor Washers. See Special Tools .

CAUTION: Refer to Brake Dust Caution .

IMPORTANT:

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).
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 .