Montero 4WD L4-2555cc 2.6L SOHC (1984)
9.
Set the pinion preload and height as described in the Service Manual, and then remove the special tools.
10.
Very carefully wipe clean the surface of the drive pinion bearing inner race, both ends of the spacer, and the surface of the drive pinion front
bearing.
11.
Reinstall the spacer, select a shim, and assemble the drive pinion, bearing, shim, and spacer into the carrier. Install the front bearing, washer, nut,
and companion flange (do NOT install the oil seal), and tighten the nut to specifications.
12.
Measure the torque required to turn the drive pinion at a steady rate of about 1 turn every second. If it is more than the value given in Table 2, the
shim you installed is too thin. If the torque is less than the specified value, the shim is too thick. Disassemble and select a thicker or thinner shim
and repeat until the desired preload is reached.
13.
Install the drive pinion oil seal, reassemble the differential and check the gear tooth pattern as described in the Service Manual. If the tooth pattern
is not correct, correct it as described in the Service Manual before installing the differential in the vehicle.
TABLE 2: DRIVE PINION BEARING PRELOAD TORQUE SPECIFICATIONS
"Old"/"New" Bearing No's
Preload Torque @ 1 rev/sec
New
KOYO M86649 & M89448
1.5-2.5 N-m(1.3-2.2 in.lbs.)
MMSA MB290962 & MB290960
New
NTN M88043/M88010V2 & M89449/M89410V2
4.0-5.0 N-m(3.5-4.3 in.lbs.)
MMSA MB393471 & MB393470
Old
NTN M86649/M86610 & M89449/M89410
6.5-10.0 N-m(6-9 in.lbs.)
MMSA MB092150 & MB092010
Old
NTN M88043/M88010 & M89449/M89410
6.5-10.0 N-m(6-9 in.lbs.)
MMSA MB092009 & MB092010
