Suburban 3/4 Ton 4WD V8-305 5.0L (1986)
Brake Pad: All Technical Service Bulletins
Brake Pads - Front Brake Squeal
GMC NUMBER:
87-T-67
GROUP:
5 -Brakes
DATE:
July, 1987
CORPORATE
NUMBER:
765003
SUBJECT:
FRONT BRAKE SQUEAL
MODELS:
1979-1987 LIGHT DUTY TRUCK MODELS
Some 1979-1987 light duty truck models may experience a high pitched squeal coming from the front of the vehicle under light to moderate brake
applications. Revised noise insulated brake pads (called SAS II) with an insulator permanently attached to the metal portion of the brake pads are now
available to help reduce brake squeal. These brake pads are available for the light duty trucks listed below.
OPTION
PART
MODEL
CODE
YEAR
NUMBER
M Van
Manual Brakes
JB1
1985-87
12321436
Power Brakes
JB3
1985-87
12321435
S/T
JB1, JM5,
1982-87
12321426
All
JM7
R/V, G - 1,2 Under
JB1
1983-87
12321434
8,000 GVW and Manual Brakes
R/V - 1, 2 Under
JB3, JD3 JB5, JD5
1984-87
12321435
8,000 GVW and Power
JB6, JD6
Brakes
G - 1,2 Under 8,600
JB3, JB5 JD5
1984-87
12321435
GVW and Power Brakes
R/V - 2 8,600 GVW
JB7, JD7
1979-87
12321437
and Power Brakes
