SERVICE MANUAL UPDATE SEC. 3A7 REVISE AXLE SUSPENSION SPECS.

SUBJECT: SERVICE MANUAL UPDATE X-9033 AND X-9133 SECTION 3A-7

MODELS: 1990-91 C5H C6H C7H TOPKICK/KODIAK MEDIUM DUTY TRUCKS

THIS BULLETIN UPDATES SECTION 3A-7 OF 1990-91 C5H C6H C7H TOPKICK/KODIAK MEDIUM DUTY TRUCKS SERVICE MANUALS X-9033 AND X-9133. GMC TRUCK RECOMMENDS THAT A COPY OF THIS BULLETIN BE PLACED IN THE APPROPRIATE SECTION OF THESE SERVICE MANUALS.

To further enhance practical use of the subject publication and page, use the following conversions from degrees to inches for axle alignment toe-in specifications:

o Check .028 degrees + or - .056 degrees converts to 1/32 inch + or - 1/16 inch.

o Set .028 degrees + or - .028 degrees converts to 1/32 inch + or - 1/32 inch.

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.