PART 7: STARTING & OPERATING THE VEHICLE SETTING RIDE HEIGHT
(R10/06) Y53-6007 – 109 –
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Opening Drains
4. Secure the vehicle. Close all the windows and lock all
the doors.
Setting Ride Height
Vehicles equipped with rear air suspensions have their
ride height and axle (pinion) angle(s) preset at the factory.
These are precision settings and should not be altered.
Incorrectly adjusted ride height may result in improper
interaxle U-joint working angles. This can result in prema
-
ture driveline wear and driveline vibration. If your vehicle
is equipped with a Peterbilt rear air suspension, and if it
becomes necessary to reset the ride height, you may tem
-
porarily set it by following the next procedure. Proper ride
height measurement and values are shown in the illustra
-
tion and table below.
Ride Height Measurement (Tandem Axles Location)
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