C 2500 Truck 2WD V8-454 7.4L (1988)
BEGINNING BREAKPOINTS FOR PRODUCTION INSTALLATION OF ALIGNMENT KITS:
COMPONENTS
MODEL
YEAR
PLANT
FROM
THROUGH
INVOLVED
C/K
1988
Pont.East
JE100001
JE211189
Alignment Kit
"
"
Ft. Wayne
JZ000037
JZ331451
" " "
"
"
Oshawa
J1100014
J1309126
" " "
C/K
1989
Pont. East
KE100001
KE282858
" " "
"
"
Ft. Wayne
KZ100001
KZ285940
" " "
"
"
Oshawa
K1100015
K1262167
" " "
C/K
1990
Pont. East
LE100001
LE196361
"
"
Ft. Wayne
LZ100001
LZ181940
" " "
"
"
Oshawa
L1100015
L1186255
" " "
SPECIAL POLICY ADJUSTMENT
Ball Joints:
On all 1988, 1989, and 1990 models up to the VIN breakpoints, for a period of 5 years or 100,000 miles (160,000 km) from purchase whichever occurs
first, if a customer experiences contamination of any of the maintenance-free ball joints, all maintenance-free ball joints will be replaced with greaseable
ball joints at no charge. Due to the improved performance of 1990 model year maintenance-free ball joints, there is a reduced likelihood that a 1990
model truck will experience symptoms due to contamination. For 1990 model trucks only, conduct the ball joint wear check included in this bulletin to
determine whether a customer complaint is attributable to contamination of a maintenance-free ball joint. Do not replace the maintenance-free ball joints
in a 1990 model truck unless a ball joint check indicates over 1 mm (0.040 inch) of vertical looseness. This dimension is to be recorded on the repair
order.
Field testing has now confirmed that a 1988-90 C/K truck does not require front wheel alignment due to ball joint replacement. Therefore, caster/camber
alignment will no longer be provided upon customer request under this special policy. However, in the interest of customer satisfaction and upon
customer request, a toe-in alignment may be completed after maintenance free ball joint replacement under this special policy.
Wheel Caster/Camber Alignment Parts Kit
On all 1988, 1989 and 1990 models up to the VIN breakpoints, for a period of 5 years or 100,000 miles (160,000 km) from purchase, whichever occurs
first, if a customer's vehicle requires caster/camber alignment, the caster/camber alignment parts kit will be provided at no charge (but not the installation
cost). Testing has confirmed that caster/camber alignment is only required due to accident or road hazard damage.
This "Special Policy Adjustment Bulletin" should be filed in your "Special Policy Adjustment Bulletins" binder.
OWNER NOTIFICATION
Owners of all vehicles involved in this SPECIAL POLICY ADJUSTMENT have been notified previously by Chevrolet Motor Division (see copy of
owner letter included with this bulletin). No additional notification will be made.
PARTS INFORMATION
Parts are to be obtained from General Motors Service Parts Operations (GMSPO).
QUANTITY/
PART NUMBER
YEAR
MODEL
DESCRIPTION
VEHICLE
15657212
88-89
C10, 20, 30
Lower Control Arm
2
Ball Joint Kit
15634942
88-90
K10, 20, 30
" " "
2
15659518
88-90
C/K 10 or
Upper Control Arm
2