S10/T10 Blazer 4WD V6-262 4.3L (1989)
Wheel Cover: All Technical Service Bulletins
Wheels - Reduced Hubcap Retention
Number:
89-235-3E
Section:
3E
Date:
August 1989
Corporate Bulletin No.: 963501
Subject:
REDUCED HUBCAP RETENTION
Model and Year:
1989 T TRUCKS
TO:
ALL CHEVROLET DEALERS
1989 T trucks equipped with steel wheels that were built between the following breakpoints may experience an inability to install the hubcap or reduced
hubcap retention. This condition is due to an incorrect wheel nut being installed during assembly.
ASSEMBLY LOCATION
VIN DESIGNATOR
INVOLVED VEHICLES
MORAINE
2
1GCCT19R3K2266440
THRU 1GCCT14RXK2269696
PONTIAC
0
1GNCT18Z5K0189591
THRU 1GNCT18Z0K0190096
SHREVEPORT
8
1GNCT18Z9K8247848
THRU 1GNCT18Z7K8251588
The hubcaps on these vehicles are retained by an interference fit with the wheel nuts. If reduced retention is experienced, wheel nut P/N 14066920 (20
required per vehicle) should be installed on all four wheels and torqued to 140 N-m (100 lb/ft).
Part is currently available through GMSPO.
The correct wheel nut can be identified by a shoulder located between the tapered end and the hex fitting, and also it is approximately 1/4" taller than the
incorrect wheel nut.
