Chevrolet 2000 C-Series Owner's Manual page 295

(45) = For Stud Piloted Wheels Only: Tighten the
wheel stud nuts to the specified torque values at
100 miles (160 km), 500 miles (800 km) and
1,000 miles (1 600 km) and then every 1,000 miles
(1 600 km) thereafter. See "Tightening the Wheel Nuts"
in the Index.
(46) = For Hub Piloted Wheels Only: Tighten the
wheel stud nuts to the specified torque values at
1,000 miles (1 600 km). Thereafter, tighten them
1,000 miles (1 600 km) after each time the wheel
is removed. See "Tightening the Wheel Nuts" in
the Index.
(47) = Service is required now if you operate under
any of these Short Trip/City conditions:
D
Most trips are less than 5 to 10 miles (8 to 16 km).
This is particularly important when outside
temperatures are below freezing.
D
Most trips are through dusty areas.
D
You frequently tow a trailer.
D
The vehicle is operated at or near maximum
GVW ratings.
D
The vehicle is operated in hilly or
mountainous terrain.
(48) = Service is required now for all vehicles that
have not previously required service under the Short
Trip/City conditions.
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