Copyright Meritor, Inc., 2022
MM-0861 / Revised 06-22
Page 70
Printed in USA
7 Assembly
REAR
OUTPUT
SHAFT
HIGH RANGE
GEAR
4000183b
BEARINGS
SPACER
AND SHIMS
Figure 7.27
2. Rotate the output shaft several times to seat the bearings.
3. Use a suitable dial indicator setup and pry UP on the yoke to
determine bearing end play. End play should be 0.002-0.004”
(0.051-0.102 mm). To obtain a consistent reading, perform
this operation two or three times. Record the reading for this
shaft. Figure 7.28.
• If bearing end play is within specification:
The rear cover assembly is ready for installation.
• If bearing end play is out of specification:
Remove the rear output shaft and install an appropriate
spacer and shim combination between the bearing cones.
4000206a
Figure 7.28
4. If necessary, remove the rear output shaft. Add shims to
increase end play or remove shims to reduce end play.
Reinstall the rear output shaft assembly.
5. Recheck the end play.
Front Input Shaft End Play Check and Adjustment
(All Models)
1. Set up a dial indicator to check input shaft bearing end play.
Center the dial indicator over the shaft using a ball bearing for
accuracy. Figure 7.29.
4000213a
Figure 7.29
2. Use a pry bar to lift the yoke to obtain a measurement. To
obtain a consistent and averaged reading, perform this
operation two or three times. Record the reading for the input
shaft. The specification for MTC-4208 and MTC-4210 transfer
cases is 0.002-0.006” (0.052-0.152 mm), and 0.002-0.004”
(0.051-0.102 mm) for the MTC-4213 transfer case.
• If the end play is greater than 0.006” (0.152 mm) for
MTC-4208 and MTC-4210 transfer cases, or 0.004”
(0.051-0.102 mm) for the MTC-4213 transfer case:
Remove shims to decrease end play.
• If the end play reading is less than specification:
Add shims to increase end play. Bearing shims come in
0.003”, 0.005”, and 0.010” (0.08, 0.13, and 0.25 mm)
thicknesses.
3. If it is necessary to add or remove shims, remove the input
bearing cage and oil pump assembly capscrews and lift the
assembly enough to insert or remove shims.
• This can be done without completely removing the pump
and shaft assembly from the housing.
• The nut on the rear end of the shaft on MTC-4208 and
MTC-4210 transfer cases must be removed first. Refer to
the exploded views in this manual starting on page 4.
4. When the correct shim pack is chosen, reinstall all seven
input bearing cage and oil pump assembly capscrews.
Tighten the capscrews to 85-115 lb-ft (115-156 Nm).
5. Recheck the input shaft bearing end play. Adjust the end play
as necessary.
