HUB CAP DISTORTION (REPLACE TRIM RING)

Subject: HUB CAP DISTORTION (REPLACE TRIM RING)

Model and Year: 1989-93 T TRUCKS

CONDITION/CAUSE: --------------- Some black hub caps, used on 1989-93 T1 trucks, may become distorted by reflected sunlight focused on the center cap by the wheel trim ring.

CORRECTION:

---------- If this condition occurs, it can be corrected by using a redesigned trim ring (P/N 15693529), which has a convex surface to redirect reflected sunlight away from the center cap. The older design trim ring has a concave surface which tends to focus sunlight onto the center cap.

SERVICE PARTS INFORMATION:

PART # DESCRIPTION QTY ------ ----------- --- 15693529 Wheel Trim Ring (15 in. wheel) 4 15635589 Black Hub Cap with 5 lug holes 4 (less insert)

Parts are currently available from GMSPO.

WARRANTY INFORMATION:

For vehicles repaired under warranty, use:

LABOR OP LABOR TIME -------- ---------- E0027 See Applicable LTG.

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.