Figure 1 of this bulletin replaces Figure 11 on page 7C-6 in the 1989, 1990 and 1991 GEO Metro Service Manuals (ST370-89, ST370-90 and ST370-91). Note that the clutch alignment arbor, J 37761 has changed to J 34860.
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.