Transfer Case and Propeller Shaft Maintenance Instructions (Cont)
Some M978 models have a propeller
shaft guard over the
propeller shaft. To remove
propeller shaft, propeller shaft
guard must be removed from front
All propeller shafts are removed and
installed in the same manner. Both
ends of propeller shaft are removed
and installed from flange yokes in
the same manner.
Remove and discard two screws (3)
from each side of flange yoke (2).
Be careful when removing bearing caps or
needle bearings may fall out and be
damaged or lost.
Remove bearing caps (4) from each
side of flange yoke (2) and universal
Pull propeller shaft (6) to one side and pull out to remove propeller shaft from flange yoke (2).
Failure to properly tighten bolts, and reuse of self-locking bolts, could cause the driveshaft
to loosen and separate from the vehicle, which could cause a loss of control and could result
in serious personal injury or death.
M984E1 propeller shaft and yoke on transfer case are larger than those used on other
vehicles. Refer to TM 9-2320-279-24P for proper parts identification.
Install universal joint (5) in flange yoke (2).
Install bearing caps (4) on both sides of universal joint (5) and flange yoke (2). Make sure
bearing caps are sealed against flange yoke (2).
Install two screws (3) on each bearing cap (4).
Tighten screws (3) (fig. 9-1).