41–00 Safety Precautions
Safety Precautions in this section apply to all
procedures within this group.
DANGER
When working on the vehicle, shut down the en-
gine, set the parking brake, and chock the tires.
Before working under the vehicle, always place
jack stands under the frame rails to ensure the
vehicle cannot drop. Failure to follow these steps
could result in serious personal injury or death.
41–01 Driveline Inspecting
Driveline Inspection
WARNING
Do not service or inspect a driveshaft with the en-
gine running. A rotating driveshaft can cause seri-
ous personal injury.
Loose end yokes, excessive radial looseness, slip
spline radial looseness, bent shaft tubing, or missing
plugs in the slip yoke can cause universal joint and
bearing defects.
See
for an illustration of the ArvinMeritor
™
Full-Round driveline. See
for an illustration of
the ArvinMeritor
™
Easy Service
™
or 1/2 Round
driveline.
1.
Check the output and input end yokes on both
the transmission and axle for axial looseness.
Refer to the axle or transmission manufacturer’s
service information for the correct specifications.
If loose, disconnect the driveshaft. For instruc-
tions, see
Group 41
of the
Business Class® M2
Workshop Manual
. Tighten the end yoke retain-
ing nut to the proper specification. Refer to the
axle or transmission manufacturer’s service infor-
mation for the correct specifications.
2.
Inspect for worn universal joints. Apply a vertical
force of about 50 pounds to the driveline near
the universal joints. If there is any movement,
replace the universal joint. For instructions, see
Group 41
of the
Business Class® M2 Workshop
Manual
.
3.
Examine the slip yoke spline for excessive radial
movement. See
. If excessive radial loose-
ness exists between the slip yoke and the tube
shaft, replace the slip yoke and the tube shaft.
For instructions, see
Group 41
of the
Business
Class® M2 Workshop Manual
.
4.
Examine the shaft for damaged or bent tubing.
Carefully remove any foreign material, such as
mud or dirt on the shaft.
41–02 Driveline Lubricating
Driveline Lubrication
The Full-Round and Easy Service drivelines require
periodic lubrication of the universal joints and slip
yoke splines. See
for the areas that need lu-
brication. See
for approved lubricants.
09/19/2001
f410483
Fig. 1, Full-Round Driveline
09/19/2001
f410484
Fig. 2, Easy Service (1/2 Round) Driveline
Driveline
41
Business Class M2 Maintenance Manual, August 2015
41/1
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