1991 MITSUBISHI ECLIPSE torque

REAR AXLE - SDecial Tools
SPECIAL TOOLSN03DA--
ToolNumber
Name
UseMB990767
End yoke holderMeasurement of rotation torque of the limiter
/slip differentialStop axle shaft turning
CT-l 003Axle shaft pullerPress-fitting the drive pinion rear bearing outerace
Sliding hammer set
Removal of the axle shaftMB990560
Bearing removerRemoval of the axle shaft dust cover, oute
bearing and rear rotor
Press-in the outer wheel bearing and rear rotorMB991115
Oil seal installer
Press-fitting of drive shaft oil seal
Side bearing puller
Removal of the side

3-8REAR AXLE - Service Adjustment Procedures
09D031
llA0065SERVICE ADJUSTMENT PROCEDURES
REAR AXLE TOTAL BACKLASH CHECK
N03FAAF
If the vehicle vibrates and produces a booming sound due to animbalance of the driving system, measure the rear axle total
backlash by the following procedures to see if the differential
carrier assembly required removal.
(1) Place the gearshift lever in the neutral position, apply the
parking brake and jack up the vehicle.
(2) Manually turn the propeller shaft clockwise as far as it will
go and make mating marks on the companion flange dust
cover and the differential carrier.
(3) Manually turn the propeller shaft counterclockwise as far as
it will go and measure the movement of the mating marks.Limit: 5 mm
(.2 in.)
(4) If the backlash exceeds the limit, remove the differential
carrier assembly and adjust the backlash. (Refer to P.3-20.)
GEAR OIL LEVEL CHECKN03FCAA1. Remove the filler plug, and check the oil level.
2. The oil level is sufficient if it reaches the filler plug hole.
Specified gear oil:
MOPAR Hypoid Gear Oil API classification
GL-5 or
higher
[0.7 liter (0.74 qts.)]
NOTEAbove
-23°C (-10°F): SAE 90, 85W-90, 8OW-90
From
-34°C (-30°F) to -23°C (-10°F): SAE 8OW,
8OW-90Below
-34°C (-30°F): SAE 75WREAR WHEEL BEARING END PLAY
CHECKN03FEAE
(1) Support the vehicle on axle stands positioned at the
specified locations and remove the rear wheel.
(2) Separate the parking brake cable from the rear brake.
(3) Remove the caliper assembly and brake disc.
(4) Place a dial gauge as shown in the figure, and then
measure the play when the axle shaft is moved in the axial
direction.Limit: 0.8 mm
(.031 in.)
(5) If the play exceeds the limit, check the tightening torque of
the companion flange of the axle shaft; if it is correct,
replace the wheel bearing.

REAR AXLE - Service Adjustment Procedures3-9
14A0521
IncorrectREAR WHEEL BEARING ROTATION SLIDING
RESISTANCE CHECKNOOFJAA
(1) Remove the drive shaft from the companion flange.
(2) Remove the brake pad or caliper assembly.
(3) Attach a spring balance to the hub bolt, then, pulling the
balance at a right angle to the hub bolt, measure the
rotation sliding resistance (rotation starting torque) to see
whether it is within the standard value.
Standard value: 12
N (2.6 Ibs.) [rotation starting tor-
que 0.7 Nm (6 in
Ibs.)] or less
(4) If the rotation starting torque exceeds the standard value,
check the tightening torque of the axle shaft companion
flange. If it is normal, replace the bearing.
LIMITED-SLIP DIFFERENTIAL CHECKNOJFIAA(1) Block the front wheels and move the shift lever to neutral.
(2) Completely release the parking brake.
(3) Jack up the rear wheels and place a rigid rack at the
specified part of the side sill.
(4) Disconnect the coupling of the differential and propeller
shaft.(5) When one wheel is slowly rotated, check whether or not
the wheel on the other side turns in the same direction.
(6) If it turns in the opposite direction, replace the viscous unit.
_--

REAR AXLE - Drive Shaft
Boot band
CTwo-part serration
llA02802. INSTALLATION OF DRIVE SHAFT
I_ ,T
Caution
1.Be cautious to ensure that the differential carrier oil
seal is not damaged by the drive shaft spline.
2. The drive shafts for models equipped with the
limited-slip differential are of different length and,
in addition, the right drive shaft has a two-part
serration; be very careful to install each one on the
correct side.
NOTE
The left and right drive shafts can also be distinguishedfrom each other by the identification color of boot band
C.
IItemDrive shaftDrive shaft
(left)(right)IIIBoot band
C identification color YellowBlueI
3.Be sure to thoroughly remove any oil or grease, etc.from the threaded part of the bolt and nut used for
installation to the companion flange,
because any
oil, grease, etc. on these parts might cause later
loosening even though tightening is at the specifiedtorque.

REAR AXLE -Differential Carrier3-21
.-11GOO73
-
llG0076DRIVE GEAR RUNOUT
Measure the drive gear
runout at the shoulder on the reverse
side of the drive gear.
Limit: 0.05 mm
(.002 in.)
DIFFERENTIAL GEAR BACKLASH
While locking the side gear with the wedge, measure the
differential gear backlash with a dial indicator on the pinion
gear.Standard value:O-0.076 mm (O-.003 in.)
’ Limit:0.2 mm (.008 in.)
FINAL DRIVE GEAR TOOTH CONTACT
Check the final drive gear tooth contact by following the steps
below.
(1) Apply a thin, uniform coat of machine blue to both surfaces
of the drive gear teeth.
(2) Insert a brass rod between the differential carrier and the
differential case, and then rotate the companion flange by
hand (once in the normal direction, and then
on& in the
reverse direction) while applying a load to the drive gear, sothat the revolution torque [approximately
2.5-3.0 Nm
(28-33
in.lbs.)] is applied to the drive pinion.
CautionIf the drive gear is rotated too much, the tooth contact
pattern will become unclear and difficult to check.
(3) Check the tooth contact condition of the drive gear and
drive pinion.

3-26REAR AXLE - Differential Carrier
REASSEMBLYN0311-40-60
Nm*B-43 ft.lbs.*
80-90 Nm*58-65 ft.lbs.*

11 BOO86Differential gear setFinal drive gear set
Reassembly steps
1. Gear carrierl * 2. Oil seale+3. Drive pinion rear bearing outer racel +4. Drive pinion front bearing outer race
l *Adjustment of pinion height
5. Drive pinion
6. Drive pinion rear shim
(for pinion height adjustment)
7. Drive pinion rear bearing inner race8. Drive pinion spacer
l 4Adjustment of drive pinion preload9. Drive pinion front shim
(for preload adjustment)10. Drive pinion assembly11. Drive pinion front bearing inner race
12. Oil seal
13. Companion flange
14. Washer
15. Self-locking nut
16. Differential casellA0260llA0290
17. Limited slip (viscous coupling) differential
case
l *Adjustment of differential gear backlash
18. Side gear spacers
19. Side gears20. Pinion washers
21. Pinion gears22. Pinion shaft
l * 23. Lock pin
l + 24. Drive gear
+4 25. Side bearing inner race
26. Side bearing outer race
l 4Adjustment of final drive gear backlash
27. Side bearing spacers28. Differential case assembly
29. Bearing capsl 30. Vent plug
l
31. Differential cover
NOTE(I) I)+ : Refer to “Service Points of Reassembly”.[Z!/ m : Non-reusable parts.*: Tightening torque with oil applied.

REAR AXLE - Differential Carrier3-27
llK010
71
llY181llY182
.MB990836(MB990835)
llrm3
V223
SERVICE POINTS OF REASSEMBLYNOJUBD2. PRESS FITTING OF OIL SEAL
(1) With the special tool, press fit the oil seal until it is flushwith the end of the gear carrier.
(2) Apply multipurpose grease to the oil seal lip.
Specified grease: MOPAR Multi-Mileage Lubricant
Part No.2525035 or equivalent
3. lNSTALLATlON OF DRIVE PINION REAR BEARING
OUTER RACE/4. DRIVE PINION FRONT BEARING
OUTER RACE
Press-fit the drive pinion rear and front bearing outer racesinto the gear carrier by using the special tools.
CautionBe careful not to press in the outer race at an angle.
l ADJUSTMENT OF PINION HEIGHT
Adjust the drive pinion height by the following procedures:
(1) Install special tools and drive pinion front and rear
bearing inner races on the gear carrier in the sequenceshown in the illustration.
NOTEApply a thin coat of multipurpose grease to the mating
face of the washer of the special tool.
Specified grease: MOPAR Multi-Mileage Lubricant
Part No.2525035 or equivalent
(2) Tighten the handle of the special tool until the standardvalue of drive pinion turning torque is obtained.
(3) Measure the drive pinion turning torque (without the oil
seal).Standard value:
Rotation torque
(starting friction torque)Nm
(in.lbs.)
I
NoneNew(with rust-I0.9-1.2 (8-10)prevention oil)New/reused Oil application
NOTE
0.4-0.5 (3-4)(I) Gradually tighten the nut of the special tool while
checking the drive pinion turning torque.
(2) Because the special tool cannot be turned one turn, turnit several times within the range that it can be turned;then, after fitting to the bearing, measure the rotation
torque.

3-28REAR AXLE - Differential Carrier
Y223
MB990031(4) Position the special tool in the side bearing seat of the
gear carrier, and then select a drive pinion rear shim of athickness which corresponds to the gap between the
special tools.
NOTE
Clean the side bearing seat thoroughly. When position-
ing the special tool, be sure that the cut-out sections ofthe special tool are in the position shown in the
illustration, and also confirm that the special tool is in
close contact with the side bearing seat.
When selecting the drive pinion rear shims, keep the
number of shims to a minimum.
(5) Fit the selected drive pinion rear shim(s) to the drive
pinion, and press-fit the drive pinion rear bearing inner
race by using the special tool.
. ADJUSTMENT OF DRIVE PINION PRELOAD
Adjust the drive pinion turning torque by using the following
procedures:
(1) Fit the drive pinion front shim(s) between the drive
pinion spacer and the drive pinion front bearing inner
race.
(2) Tighten the companion flange to the specified torque byusing the special tools.
NOTEDo not install the oil seal.
(3) Measure the drive pinion turning torque (without the oil
seal) by using the special tools.
Standard value:
21
.;c
1 New
New/reused Oil application
0.4-0.5 (3-4)
(4) If the drive pinion turning torque is not within the range
of the standard value, adjust the turning torque by
replacing the drive pinion front shim(s) or the drive
pinion spacer.
NOTEWhen selecting the drive pinion front shims, if the
number of shims is large, reduce the number of shims
to a minimum by selecting the drive pinion spacers.