The 1991 - 1992 Body/Collision Repair and the Revised 1991 - 1992 Specifications Service Manuals each have an incorrect illustration.
CORRECTIVE ACTION: Please replace the illustration on page BDFR9 of the 1991-1992 Body/Collision Repair Service Manual and the illustration on page RFSP 68 of the Revised 1991-1992 Specifications Service Manual with the attached self-stick labels. In both cases the illustration number, located at the bottom right of the illustration, is SMSSM51267AA.
For reference, this illustration is also shown on page 2 of this bulletin
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.