GM Service Manual Online
For 1990-2009 cars only

TIRE ROTATION PRECAUTIONS WITH P245/50VR16 TIRES

VEHICLES AFFECTED: 1984 Trans Am 15th Anniversary Modele and 1985 Trans Am's Equipped With Hi-Tech Turbo Wheels 1985 Chevrolet Camaro Z-28 Equipped With IROC Option B4Z

The 1984 15th anniversary Trans Am's are equipped with P245/50VR16 tires. The following precautions must be observed because the front and rear wheels have different offsets and the P245/50VR16 tire is directional. Wheels and tire assemblies cannot be rotated in the conventional way. In the event that tire rotation is required, tires must be dismounted from the wheels and switched back to front, maintaining the directional rotation of each tire. Tire chains should not be used because they may cause damage. Automatic car wash facilities should not be used unless the car wash wheel guide track exceeds 10-1/2 inches in width. The same applies to 1985 Trans Am with Hi-Tech turbo wheels.

NOTE: IROC option vehicles use a spacer between the wheel and drum assembly. This spacer is to be installed with the notation 'out' toward the wheel.

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