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GMC Workshop Service and Repair Manuals

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Alignment - The Importance of Four Wheel Alignment|Page 550 > < Alignment - The Importance of Four Wheel Alignment|Page 548

K 1500 Truck 4WD V8-350 5.7L (1986)

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Measure Tread Depth

B.

If the outer shoulder tread is visible, use a tread depth gauge to determine extent of wear. Measure tread depth at location shown in Figure
No. 2. If tread depth is 5/32" or

less, tire replacement will be necessary. If greater than 5/32", the tires should be rotated using the modified "X" pattern (See Figure No. 1). This method
will best equalize wear after a few thousand miles.

SHOULDER WEAR

General and Uniroyal

Alignment - The Importance of Four Wheel Alignment|Page 550 > < Alignment - The Importance of Four Wheel Alignment|Page 548