MITSUBISHI MONTERO 2000 Service Repair Manual

M
B990947 M
B990847
M B990981
A
B L
.H ., R .H . - Fro nt R
ear M
B991318 M
B9911 83 M
B990843
D C

REAR AXLE
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27-1
REAR AXLE
CONTENTS
GENERAL INFORMATION 2...................
SERVICE SPECIFICATIONS 3.................
LUBRICANTS 3..............................
SEALANTS 4................................
SPECIAL TOOLS 5...........................
ON-VEHICLE SERVICE 8.....................
Rear Axle Total Backlash Check 8................
Gear Oil Level Check 8.........................
Wheel Bearing Axial Play Check 8................Rear Differential Lock Detection Switch Check 9....
Rear Differential Lock System Air Leakage
Check 9.......................................
REAR HUB ASSEMBLY 10...................
KNUCKLE 13...............................
DRIVE SHAFT 14............................
REAR DIFFERENTIAL LOCK 20..............
DIFFERENTIAL CARRIER 23.................


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REAR AXLE -General Information27-2
GENERAL INFORMATION
The rear axle has the following features.
DD.O.J.-type on the differential side and B.J.-type on the hub side constant velocity joints are featured
in the drive shaft.
DLarge capacity and high rigidity taper-roller type unit bearing in the wheel bearing is featured.
DThe hybrid LSD and differential lock with LSD which benefit driving on muddy and rough roads are
featured as an option.
DABS rotor to detect wheel speed is press-fitted in the drive shaft.
NOTE
The structure of normal differential and hybrid LSD is basically the same as featured in existing models.
SPECIFICATIONS
ItemNormal DifferentialHybrid LSDDifferential Lock
with LSD
Reduction gear typeHypoid gearHypoid gearHypoid gear
Reduction ratio4.900*1, 3.917*2,
4.100*3, 4.300*44.900*1, 3.917*2,
4.100*3, 4.300*44.900*1, 3.917*2,
4.100*3, 4.300*4
LSD type-Torque sensing +
VCUTorque sensing
Differential gear type (Type´
number of gears)Side gearStraight bevel gear
´2Helical gear´2Helical gear´2
Pinion gearStraight bevel gear
´2Long pinion´4,
Short pinion´4Long pinion´4,
Short pinion´4
Number
of teethDrive gear49*1, 47*2, 41*3,
43*449*1, 47*2, 41*3,
43*449*1, 47*2, 41*3,
43*4
Drive pinion10*1,*3,*4, 12*210*1,*3,*4, 12*210*1,*3,*4, 12*2
Side gear182222
Pinion gear1077
Bearings (Outside diameter´Side90.0´55.090.0´55.090.0´55.0
Inside diameter) mm
Front68.3´30.268.3´30.268.3´30.2
Rear79.4´36.579.4´36.579.4´36.5
NOTE
*1:4D56
*2:4M41-A/T
*3:4M41-M/T
*4:6G74 GDI


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D
if f e re ntia lca rrie r
D riv e sh aft U
nit b earin g R
ear hub
K
nuckle
S ER VIC E SPEC IF IC ATIO NS
I te m S
ta ndard va lu e L
im it R
ear axle to ta lb ackla sh mm - 5
W
heelb earin g ro ta tio n sta rtin g to rq ue N×m - 1
.7 6 W
heelb earin g axia lp la y m m - 0
D
O J boota sse m bly dim ensio n mm V
ehic le s wit h out 4M 4-M /T 1
1 0 ± 3 -
V
ehic le s wit h 4M 4-M /T 1
1 5 ± 3 -
R
ear dif f e re ntia llo ck air pum p pre ssu re kP a 2
5 – 40 -
D
riv e gear backla sh mm 0
.1 3 – 0.1 8 -
D
riv e gear ru nout m m - 0
.0 5 D
if f e re ntia lg ear backla sh mm 0
–0.0 76 0
.2 D
riv e pin io n tu rn in g to rq ue W
it h out oil se al 1
.9 4 – 2.2 5 -
N
×m W
it h oil se al C
om panio n fla nge (o il se al
c o nta ctin g are a) wit h an-
t i- ru st agent 2
.0 3 – 2.3 4 -
C
om panio n fla nge (o il se al
c o nta ctin g are a) w it h gearo il
a pplie d 2
.1 0 – 2.4 0 -

REAR AXLE -Lubricants/Sealants27-4
LUBRICANTS
ItemSpecified lubricantsQuantity
Rear differential gear oilHypoid gear oilApprox. 1.6 L
API classification GL-5 or higher SAE viscosity
No. 90, 80 W
B.J. jointRepair kit grease245±10 g
D.O.J. jointRepair kit grease295±10 g
SEALANTS
ItemsSpecified sealantsRemarks
Differential cover3M ATD Part No. 8661 or equivalentSemi-drying sealant
Drive gear and differential case mounting part3M Stud Locking 4170 or equivalentAnaerobic sealant


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S
PEC IA L TO OLS
T o ol N
um ber N
am e U
se M
B990767 F
ro nt hub and
f la nge yo ke hold er R
em ova l, in sta lla tio n of th e driv e sh aft nut M
B99111 3 or
M B990635 S
te erin g lin ka ge
p ulle r D
is co nnectio n of ball jo in t M
B990909 W
ork in g base S
upportin g of th e dif f e re ntia lca rrie r M
B990810 S
id e bearin g pulle r M
B991407 D
if f e re ntia lre ar
s u pport arb or R
em ova lo f th e sid e bearin g in ner ra ce M
B990850 E
nd yo ke hold er M
D998801 B
earin g re m ove r R
em ova lo f th e driv e pin io n re ar bearin g
i n ner ra ce M
B9911 68 D
if f e re ntia l oil se al
i n sta lle r I
n sta lla tio n of driv e pin io n oil se al M
B991445 B
ush re m ove r and
i n sta lle r base I
n sta lla tio n of driv e pin io n re ar bearin g oute r
r a ce

P
in io n heig ht
g auge se t
A : Driv e pin io n
g auge
B :C ylin der gauge
C : Driv e pin io n
g auge atta ch -
m ent M
easu re m ent of th e pin io n heig ht M
B991534 C
ylin der gauge M
B990685 T
o rq ue wre nch M
easu re m ent of th e sta rtin g to rq ue of ball
b earin g M
B990326 P
re lo ad so cke t B
C A
, B: Fro nt hub
r e m ove r and
i n sta lle r
C :S pace r M
B990802 B
earin g in sta lle r P
re ss-fit tin g of th e driv e pin io n re ar bearin g
i n ner ra ce M
B990727 D
riv e pin io n oil s e al
i n sta lle r P
re ss-fit tin g of th e driv e pin io n oil se al

M
D998812 I
n sta lle r ca p P
re ss-fit tin g of th e sid e bearin g in ner ra ce M
D998829 I
n sta lle r adapto r A B
earin g and oil
s e alin sta lle r se t
A :In sta lle r adapto r
B :B ar
C :B ra ss bar

O
N-V EH IC LE SER VIC E
R EA R AXLE TO TA L BACKLA SH CHEC K
1 . Park th e ve hic le on afla t, le ve l su rfa ce .
2 . Move th e tr a nsm is sio n co ntr o lle ve rto th e neutr a lp osit io n.
M ove th e tr a nsfe r co ntr o l le ve r to th e neutr a l posit io n.
A pply th e park in g bra ke . Rais e th e ve hic le on aja ck.
3 . Turn th e co m panio n fla nge clo ckw is e as fa r as it w ill g o.
M ake th e m atin g m ark on th e dustc o ve r ofth e co m panio n
f la nge and on th e dif f e re ntia l ca rrie r.
4 . Turn th e co m panio n fla nge anti- c lo ckw is e as fa r as it
w ill g o, and measu re th e am ount of dis ta nce th e matin g
m ark s move d.
L im it : 5 mm
5 . If th e backla sh exce eds th e lim it va lu e, re m ove th e
d if f e re ntia l ca rrie r asse m bly and ch eck th e fo llo w in g.
D F
in al driv e gear backla sh (R efe r to P.2 7-3 7.)
D D
if f e re ntia l gear backla sh (R efe r to P.2 7-3 6.)
G EA R OIL LE VEL CHEC K
C heck th at gear oil le ve l is not 5 mm belo w th e botto m of
f ille r plu g hole .
S pecif ie d gear oil:
H yp oid gear oil A PIcla ssif ic atio n GL-5 or hig her S A E
v is co sit y Num ber 90, 80W
W HEEL BEA RIN G AXIA L PLA Y CHEC K
1 . Rem ove th e re ar bra ke asse m bly and re m ove th e bra ke
d is c while hold in g it wit h wir e s to pre ve nt it fr o m fa llin g.
2 . Fit th e dia l gauge as sh ow n in th e dia gra m and move hub
i n th e axia l dir e ctio n to measu re th e pla y.
L im it : 0 mm
3 . If th e pla y exce eds th e lim it , re pla ce th e re ar hub asse m bly . U
pper
l im it 5
mm
L ow er
l im it