C 3500 Truck 2WD V8-305 5.0L (1986)
Wheels: All Technical Service Bulletins
Wheels - Finish Damage During Off Car Balancing
BULLETIN NUMBER: 93-3E-67
SECTION: 3E Wheels & Tires
NUMBER: 3
CORPORATE REFERENCE NUMBER: 3935O2R
DATE: June 1993
SUBJECT:
INFORMATION ON COSMETIC DAMAGE TO ALUMINUM WHEELS DURING BALANCING
MODELS:
1985-93 MODELS WITH ALUMINUM WHEELS
Some aluminum wheels on GM models may incur cosmetic damage during balancing if proper care and procedures are not used. All aluminum wheels
have a clearcoat paint on them that must be cared for like any other painted surface.
Some off-car vehicle balancer retaining cups used to clamp the wheel to the balancer may put a circular mark into the clearcoat on the face of the wheel.
Like any other clearcoat damage, this may be difficult to remove or repair, depending on severity.
ALWAYS use balancer retainer cups that are protected with rubber, plastic, or other nonmetallic materials where contact is made with the wheel. Make