COMPACT SPARE TIRE USAGE REVISED INFORMATION

'S' TRUCKS UTILIZE TWO DIFFERENT SIZED WHEELS FOR THE COMPACT SPARE. COMPACT SPARE TIRES MOUNTED ON 15 INCH WHEELS ARE USED ON VEHICLES WITHOUT OPTION G-80, WHILE 16 INCH WHEELS ARE USED ON VEHICLES WITH OPTION G-80 (LOCKING REAR AXLE).

REVISED INFORMATION

'T' TRUCKS UTILIZE COMPACT SPARE TIRES MOUNTED ON 16-INCH WHEELS ONLY.

'T' TRUCKS WITH P235/75R15 ON/OFF ROAD TIRES WILL COME EQUIPPED WITH A FULL SIZE SPARE. ALL OTHER 'S/T' TRUCKS OFFER FULL SIZE SPARES AS AN OPTION

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.