For 1990-2009 cars

# DOORGLASS DOWN STOP BUMPERS

SOME 1982 CAMARO OR FIREBIRD DOORS HAVE DOWN STOP BUMPERS WHICH MAY BECOME DISENGAGED FROM THE DOOR GLASS SASH CHANNEL CAUSING THE FOLLOWING CONDITIONS: 1.DOOR GLASS IS TOO LOW - CONTACTING THE LOWER EDGE OF THE OUTER BELT SEALING STRIP. 2.SASH CHANNEL ROLLER BECOMING DISENGAGED FROM THE REAR GUIDE CAM CHANNEL. SHOULD EITHER OF THESE CONDITIONS BE ENCOUNTERED, REPLACE THE BUMPERS ON BOTH DOORS WITH THE NEW DOWN STOP BUMPERS (PART NUMBER 4767527). INSTALL THE NEW BUMPER TO THE SASH CHANNEL USING A 10-24 X 1/2 MACHINE SCREW WITH A MATCHING LOCK WASHER AND NUT (FIGURE 1, SECTION A-A).

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.