IN 1982 THE WELL NUT, PART NUMBER 1622920 WAS USED TO RETAIN THE LUGGAGE RACK SLATS IN ALL LOCATIONS EXCEPT THE TWO (2) REAR OUTBOARD LOCATIONS WHICH REQUIRED PART NUMBER 1623436. IF IT SHOULD BE NECESSARY TO REPLACE WELL NUTS, IT IS RECOMMENDED THAT YOU USE PART NUMBER 1623436 WHICH WILL PROVIDE BETTER SLAT RETENTION. THIS NUT COLLAPSES STEEL LEGS TO PROVIDE THE INTERFERENCE FIT. THE PLASTIC COATING ON THIS NUT SHOULD BE PIERCED AND THE NUT COLLAPSED PRIOR TO INSTALLING THE SLAT.
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.