Global Machinery Company Sierra 1999 - Manual (Page 284)

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Removing the Flat Tire and Installing
the Spare Tire
1. Use the wheel wrench
to loosen all the
wheel nuts. Turn
the wheel wrench
counterclockwise to
loosen the wheel nuts.
Don’t remove the wheel
nuts yet.
2. Position the jack under the vehicle. If the flat tire
is on the front of the vehicle (2 - Wheel Drive
1500 Series vehicles), position the jack under the
bracket attached to the vehicle’s frame, behind the
flat tire. If the flat tire is on the front of the vehicle
(All other models), position the jack on the frame
behind the flat tire.
If the flat tire is on the rear, position the jack under
the rear axle between the spring anchor and the
shock absorber bracket.
If you have added a snow plow to the front of
your vehicle, lower the snow plow fully before
raising the vehicle.