HUB CAP DISTORTED DUE TO SUN REPLACE BLACK CAPS W/CHROME

Subject: HUB CAP DISTORTION DUE TO SUNLIGHT CONCENTRATED ON CAP BY TRIM RING

Model and Year: 1990-91 C3/K3 DUAL REAR WHEEL TRUCKS

Some black hub caps, used on 1990 - 1991 C3 and K3 vehicles with dual rear wheels and chrome trim rings, may become distorted by reflected sunlight, focused on the center cap by the wheel trim ring. If this condition occurs, it can be corrected by using a chrome hub cap in place of the original black hub caps.

SERVICE PARTS INFORMATION

Part Number Description Quantity ---------- ------------------- -------- 15678879 Front Chrome Hub Cap 2 15678880 Rear Chrome Hub Cap 2 9591798 Wheel Nut 8/Hub Cap 15646250 Wheel Nut Cap 8/Hub Cap

Parts are currently available from GMSPO.

WARRANTY INFORMATION

For vehicles repaired under warranty use:

Labor Operation: E0027

Use applicable labor time guide for labor hours.

General Motors bulletins are intended for use by professional technicians, not a "do-it-yourselfer". They are written to inform those technicians of conditions that may occur on some vehicles, or to provide information that could assist in the proper service of a vehicle. Properly trained technicians have the equipment, tools, safety instructions and know-how to do a job properly and safely. If a condition is described, do not assume that the bulletin applies to your vehicle, or that your vehicle will have that condition. See a General Motors dealer servicing your brand of General Motors vehicle for information on whether your vehicle may benefit from the information.