TM 5-3895-346-14
AXLE
DRIVE CARE AND MAINTENANCE
Figure 10.
NOTE
Both the differential bearing preload and gear lash are controlled by selective spacers, available
in increments of 0.003 inch, which are installed between the differential bearing cups and the
case and cover halves of the axle housing.
Bearing preload may be increased or decreased by using a thicker or thinner spacer respectively
in the cover half of the assembly.
The gear may be moved toward the pinion, decreasing the gear lash, by decreasing the
thickness of the spacer in the case half and increasing the thickness of the spacer by the same
amount in the cover half. Reversing this transposition will move the gear away from the pinion
and increase the gear lash.
The correct preload of 0.006-inch to 0.010-inch tight is obtained as follows:
a. Increase or decrease the thickness of the spacer used in the cover half to obtain a freely rotating gear
with from 0.000 inch to 0.005 inch end play.
b. Remove spacer in cover half and install a spacer 0.006-inch plus the end play thicker than the spacer
used to obtain the adjustment in the above paragraph.
c. If a new gear or case has been installed, check runout at back face of gear. Correct and recheck if
runout exceeds 0.005 inch.
d. When adjustment is satisfactory, remove cover and move differential and gear out on support sufficient
to permit installation of pinion and cage assembly.
8. Install thrust block and pin.
INSTALL PINION AND CAGE ASSEMBLY
1. Coat cage flange contact surface with non-hardening sealing compound. Position cage assembly over studs
and tap into position with soft mallet.
2. Install lockwashers and stud nuts. Tighten to specified torque.
CHECK AND ADIJUST GEAR LASH
Hypoid - Splined Shaft
1. Install differential and gear assembly and assemble cover using new gasket with six bolts equally spaced.
Tighten to specified torque.
631
