The torque specification for the spindle to hub and bearing nut found in Fig. 3D-16 on page 3D-9 has been changed from 110 Nm (81 ft. lbs.) to 205-240 Nm (151-177 ft. lbs.). The new specification should be noted in your copy of the 1985 Corvette Shop Manual (ST-364-85).
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.