Tandem Axle Laden Ride Height -
in. (mm)
Air Leaf 11.70 (297)
Air Trac 11.00 (279)
Low Air Leaf 8.50 (216)
Low Low Air Leaf 6.50 (165)
FLEX Air 8.50 (216)
Tandem Axle Unladen Ride
Height -in. (mm)
Air Leaf 12.0 (305)
Air Trac 11.38 (289)
Low Air Leaf 8.75 (222)
Low Low Air Leaf 6.75 (171)
FLEX Air 8.75 (222)
What to do if an Air Spring
Ruptures
If an air spring has ruptured, drive the
vehicle to a safe stop off the highway to
investigate the problem.
WARNING
DO NOT continue to drive with rup-
tured air springs. The air loss can
cause the spring brakes to apply al-
lowing your brakes to drag and burn
up the linings, which could lead to an
accident causing death or personal in-
jury. DO NOT continue to operate the
vehicle in this condition.
WARNING
DO NOT drive the vehicle if the air
pressure is less than 100 psi (690
kPa). Driving the vehicle with less than
100 psi (690 kPa) could make the
brakes unsafe to use which could
cause an accident involving death or
personal injury.
CAUTION
Operating a vehicle with air suspen-
sion bags either overinflated or under-
inflated may cause damage to drive-
line components. If a vehicle must be
operated under such conditions, do
not exceed 5 mph (8 km/h). Failure to
comply may result in equipment dam-
age.
You can get to a repair facility by removing
the height control link connected to the
axle and to the suspension air valve control
arm. This will cause the air valve control
arm to center in the closed position.
Removing the link will allow the air system
of the truck to operate normally so that the
vehicle can be driven to a service center.
DRIVING - Axle and Suspension
Y53-6076-1D1 (09/20) 153
4
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