
Copyright Meritor, Inc., 2020
Printed in USA
MM-0861 / Revised July 2020
Page 59
6
Assembly
5. Place the low-range helical gear over the input shaft with the
spline side of the gear down. For MTC-4208XLEV and MTC-
4210XLEV, install the oil spacer. The oil spacer has two oil
channels cut into it. The oil channels can face forward or aft when
installed. Install the spiral snap ring to secure the helical gear. The
gear is a slip fi t. Figure 6.10.
6. Lubricate the gear and shaft before assembly.
7.
MTC-4208XL/XLEV & MTC-4210XL/XLEV transfer cases
only:
Install the high- and low-range clutch collar over the input
shaft splines. Place the high-range helical gear over the input
shaft with the spline side of the gear facing the low-range helical
gear. Install the bearing cone with the large end of the cone
toward the high-range gear. Install the spacer on the shaft next to
the bearing cone. Figure 6.11.
Figure 6.11
4011710d
INPUT
SHAFT
BEARING
NUT
SPACER
HIGH-RANGE
HELICAL GEAR
HIGH & LOW
RANGE CLUTCH COLLAR
CAUTION
EXERCISE CARE WHEN ASSEMBLING THE INPUT SHAFT
TO THE PUMP. LINE UP AND SLOWLY DIRECT THE INPUT
SHAFT INTO THE PUMP OPENING. MISALIGNMENT DURING
ASSEMBLY CAN CAUSE THE SHAFT TO “HANG UP” ON THE
PUMP SEALING RINGS RESULTING IN DAMAGE TO THE
RINGS.
NOTE:
Use care when installing the input bearing cage to prevent
damage to the o-ring.
8. Place the oil pump, if equipped, and input bearing cage assembly
over the input shaft. The drive teeth on the inner pump rotor must
engage the teeth on the input shaft. NEVER use force to engage
the splines. If a sealing ring is broken, remove and replace the
pump.
9. Place the assembly into a holding fi xture (Refer to “Holding Fixture
(905473-140)” on page 107) and install the yoke assembly.
10. Install the washer and yoke nut. Tighten the yoke nut to 700-900
lb-ft (949-1220 N∙m).
Assemble the Upper Rear Output Shaft
(MTC-4213X Only)
1. Place the shaft into a holding fi xture with the larger end facing UP.
2. Align the internal splines of the high range helical gear with the
shaft splines and install the gear onto the shaft. Ensure the clutch
collar gears are facing UP. Figure 6.12.
Figure 6.12
4007168a
CLUTCH
COLLAR
SPLINES
REAR
OUTPUT
SHAFT
HELICAL
GEAR
3. Turn the shaft assembly over and secure it in a holding fi xture.
4. Use a press and sleeve to press the bearing DOWNWARD onto
the output shaft until it bottoms out against the helical gear. Refer
to “Bearing Cone Driver (905473-82)” on page 108. Use a
0.002” shim or feeler gauge to verify the bearing is fully seated
against the gear. Figure 6.13.
Figure 6.13
SLEEVE,
TOOL
905473-82
4007167a
HELICAL
GEAR
BEARING
PRESS
5. Continue with the procedures for checking and adjusting end play
and fi nal assembly of the transfer case. Refer to ”End Play Check
& Adjustment” on page 63.
Summary of Contents for MTC-4208X Series
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