U-bolt Nut Torque
lb.ft (Nm)
Suspension
220–260 lb.ft
(298–352 Nm)
Front axle
270–320 lb.ft
(366–434 Nm)
Rear axle
See U-bolt re-torqueing and installation
information below.
U-bolt Checks and Re-torqueing
Procedures
1.
Inspect the threads of the U-bolt and
nut for rust and debris. Clean the
threads if contaminated.
2. Using a torque wrench, determine if
you can turn any nuts with a force
below the specified torque.
3. Using the lowest discovered torqued
nut as a starting point, re-tighten the
nuts using the sequence under U-bolt
and U-bolt nut installation.
U-bolt and U-bolt Nut Installation
1.
Inspect the threads of the U-bolt and
nut for rust and debris. Clean the
threads if contaminated.
2. Install the U-bolts and nuts and torque
the nuts to seat the cap flat which is
about 74 lb.ft (100 Nm) using a
diagonal pattern. Use the same
diagonal pattern for each of the
following U-bolt nut re-torque steps.
3. Tighten U-bolt nuts in increments of
74 lb.ft (100 Nm) until tightened to
final torque for the particular
suspension.
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F650750 (TBC), enUSA, First Printing
Maintenance
