FAQ for Brake Disc Repair
Q: What is the removal procedure for the rear disc brake backing plate (15 Series W/NYS)?
A:
The procedure is to remove the rear park brake bracket bolt, the park brake cable, the wheel bearing, the park brake shoe, the park brake actuator lever housing, and the backing plate.
By BobGM Specialist
01/11/2022 Q: What is the proper way to install the front brake rotor?
A:
The proper way is to install the caliper and caliper bracket assembly, the caliper bracket mounting bolts, the front wheel hub extension, and the tire and wheel assembly.
By BobGM Specialist
01/11/2022 Q: What is the removal procedure for the rear disc brake backing plat (15 Series w/o NYS)?
A:
The procedure is to remove the tire and wheel assembly, the cable, the rotor, the axle shaft, the park brake shoe, and the backing plate.
By BobGM Specialist
01/11/2022 Q: How to test terminal contact?
A:
The procedure is to separate the connector halves, visually inspect the connector halves for contamination, and then test that the retention force is significantly different between a good terminal and a suspect terminal.
By BobGM Specialist
01/11/2022 Q: Which lathe is essential for performing brake work, the bench or the on-car?
A:
Dealers must have a well-maintained bench lathe and a well-maintained on-car lathe. These lathes need to be calibrated monthly. BOTH lathes are essential to providing quality brake service.
By BobGM Specialist
01/11/2022 Q: What is the proper way to install the rear disc brake backing plat (15 Series w/o NYS)?
A:
The proper way is to install the backing plate, the backing plate bolts, the park brake shoe, the axle shaft, the rotor, and the park brake cable.
By BobGM Specialist
01/11/2022 Q: Why does GM recommend the use of single pass (referred to as "positive rake") bench and on-car brake lathes?
A:
GM Service and GM Brake Engineering have performed competitive evaluations on a significant number of bench and on-car brake lathes. These tests measured critical performance characteristics such as flatness, surface finish, and the ability of the lathe to repeat accuracy over many uses. In each test, single-pass lathe designs outperformed the competitors. Single-pass brake lathes are more productive requiring less time to perform the same procedure.
By BobGM Specialist
01/11/2022 Q: What is the removal procedure for the Front Disc Brake Splash Shield?
A:
The procedure is to remove the tire and wheel assembly, the hub and bearing assembly, and the splash shield.
By BobGM Specialist
01/11/2022 Q: What should be noticed about brake rotor refinishing?
A:
You should know that the disc brake rotors do not require refinishing as part of routine brake system service, and the new disc brake rotors do not require refinishing.
By BobGM Specialist
01/11/2022 Q: What is the proper way to install the rear disc brake backing plate (15 Series W/NYS)?
A:
The proper way is to install the park brake actuator lever housing, the park brake shoe, the wheel bearing, the park brake cable, the park brake cable, and the tire and wheel assembly.
By BobGM Specialist
01/11/2022 See more FAQs (13)