K 2500 Truck 4WD V8-379 6.2L DSL (1988)
Brake Rotor/Disc: All Technical Service Bulletins
Brakes - Refinishing Brake Rotor Surfaces
GMC NUMBER:
88-T-167
GROUP:
5 - Brakes
DATE:
October, 1988
CORPORATE
NUMBER:
865017
SUBJECT:
REFINISHING BRAKE ROTOR SURFACES
MODEL:
1988 K1-2
1988 K1-2 model vehicles utilize "composite" front brake rotors. When refacing (turning) such rotors it is extremely important that the rotor be secured
to the lathe exactly as it is mounted on the vehicle. To accomplish this, brake rotor adaptor tool J-37620 must be used. Failure to use this tool cause
distortion of the rotor while mounting it to the
lathe, thus resulting in unparallel rotor surfaces. This condition can cause brake pedal pulsation and/or vibration. Adaptor tool J-37620 has been made
part of the 1989 GMC essential tool package.
