MITSUBISHI MONTERO 2000 Service Repair Manual

FRONT AXLE -General Information26-2
GENERAL INFORMATION
The front axle consists of the front hubs, knuckles,
drive shaft, wheel bearings, ball joints, front
differential, and freewheel clutch.
The features are:
DThe structural method of press fitting unit
bearing into the front hub is applied.
DThe wheel bearing uses a taper roller unit
bearing. For vehicles with ABS, a rotor for
detecting the wheel speed is press-fitted to
the U.J. outer wheel.
DDrive shafts incorporate U.J.-B.J.-type constant
velocity ball joint has high power transmission
efficiency and reduces vibration and noise.NOTE
U.J. is an abbreviation of Under cut Joint.
DA vacuum-type freewheel clutch has been
adopted in the freewheel mechanism. Its
solenoid valve and actuator switch powertrain
between 2WD and 4WD.
DThe differential support method is a four-point
elastic support method which reduces vibration
and noise.
ItemSpecification
WheelWheel bearing typeTaper roller type unit bearing
bearingsBearing (outside diameter´inside diameter)
mm88´50
DriveJoint typeOutsideU.J.
shaftInsideD.O.J.
Shaft length
*1´Shaft diam-Right353´28
*2,361.5´26*3
eter mmLeft323´28
*2,330´26*3
InnerShaft length´Shaft diameter mm389.2´31.5
shaftBearing (outside diameter´inside diameter)
mm62´35
NOTE
*1:The shaft length indicates the length between the center points of each joint.
*2:4M41-M/T
*3:4D56, 4M41-A/T, 6G74 GDI
FRONT DIFFERENTIAL
ItemSpecification
Reduction gear typeHypoid gear
Reduction ratio4.900
*1, 3.917*2, 4.100*3, 4.300*4
Differential gear typeStraight bevel gear
NumberDrive gear49
*1,47*2, 41*3, 43*4
of teeth
Drive pinion10
*1,*3,*4, 12*2
Side gear14
Pinion gear10
NOTE
*1:4D56
*2:4M41-A/T
*3:4M41-M/T
*4:6G74 GDI


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S
id e 8
0.0 ´ 45.2 d
ia m ete r) m m F
ro nt 6
8.3 ´30.2 R
ear 7
2.2 ´ 36.5

FRONT AXLE -Service Specifications/Lubricants26-4
SERVICE SPECIFICATIONS
ItemStandard valueLimit
Wheel bearing axis backlash mm-0
Front axle total backlash mm-11
Solenoid valve resistanceW36 - 46-
Hub rotation starting torque N×m-1.75
Setting of D.O.J. boot length mm80±5-
Opening dimension of the spe-
cial tool (MB991561) mmWhen the B.J. boot band
(small) is crimped.2.9-
When the B.J. boot band
(big) is crimped.3.2-
Crimped width of the B.J. boot band mm2.4 - 2.8-
Crimped height of B. J. boot band (big) mm-9.5
Final drive gear backlash mm0.11 - 0.16-
Drive gear runout mm-0.05
Differential gear backlash mm0 - 0.0760.2
Drive pinion turning torque N×mWithout oil seal0.83 - 1.19-
With oil sealCompanion flange (oil seal contact
surface) with anti-rust oil
0.93 - 1.128-
Companion flange (oil seal contact
surface) with gear oil
0.97 - 1.32-
LUBRICANTS
ItemsSpecified lubricantsQuantity
Front differential gear oilHypoid gear oil API classification GL-5 or higher, SAE
viscosity No. 90, 80W1.2 L
D.O.J. boot greaseRepair kit grease4M41-M/T:135±10 g
4M41-A/T, 6G7:
100±10 g
U.J.boot greaseRepair kit grease4M41-M/T:180±10 g
4M41-A/T, 6G7:
135±10 g


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S
EA LA NTS
I te m s S
pecif ie d se ala nts R
em ark s C
onta ct su rfa ce of dif f e re ntia l co ve r and
d if f e re ntia lca rrie r 3
M AT D Part N o. 8661 or equiv a le nt S
em i- d ry in g se ala nt V
entplu g F
re ew heelclu tc h asse m bly D
riv e gear th re aded hole 3
M Stu d Lockin g 4170 or equiv a le nt A
naero bic se ala nt N
um ber N
am e U
se M
B990925 B
earin g and oil
s e alin sta lle r se t M
B990955 O
il se alin sta lle r M
B99111 3 or
M B990635 S
te erin g lin ka ge
p ulle r M
B990767 F
ro nt hub & fla nge
y o ke hold er H
ub fix ia tio n M
B990998 F
ro nt hub re m ove r
& in sta lle r I
n sp ectio n of hub ro ta tio n sta rtin g to rq ue M
B991561 B
oot band clip pin g
t o ol R
esin bootb and in sta lla tio n M
B990906 D
riv e sh aft atta ch -
m ent R
em ova land in sta lla tio n of in ner sh aft (U se d
t o geth er w it h M B990211 )

R
ear axle sh aft oil
s e alre m ove r
A :A dapte r
B :S lid in g ham mer M
B990560 B
earin g re m ove r M
B990909 W
ork in g base S
upport of fr o nt dif f e re ntia lca rrie r asse m bly M
B99111 6 A
dapte r S
upport of fr o nt dif f e re ntia lca rrie r asse m bly M
B990810 S
id e bearin g pulle r M
B990811 D
if f e re ntia l sid e
b earin g ca p M
B990850 E
nd yo ke hold er R
em ova la nd in sta lla tio n of co m panio n fla nge M
B990339 B
earin g pulle r R
em ova lo fd riv e pin io n fr o ntb earin g in nerra ce M
B990648 B
earin g re m ove r

P
in io n heig htg auge
s e t
A : Driv e pin io n
g auge asse m bly
B : Cylin der gauge M
B990685 T
o rq ue wre nch M
B990326 P
re lo ad so cke t M
B990802 B
earin g in sta lle r M
B990031
o r
M B990699 D
riv e pin io n oil s e al
i n sta lle r P
re ss-fit tin g of driv e pin io n oil se al M
B990813 T
a p R
em ova lo f adhesiv e M
B990799 B
all jo in t re m ove r
a nd in sta lle r I
n sta lla tio n of fr e ew heelclu tc h bearin g 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 fr e ew heelclu tc h oil se al

M
B990890
o r
M B990891 R
ear su sp ensio n
b ush in g base I
n sta lla tio n of fr e ew heelclu tc h bearin g M
D999547 O
il se alin sta lle r R
em ova l of fr o nt dif f e re ntia l m ount in su la to r
< F ro nt, re ar L.H .> M
D999570 C
ra nksh aft fr o nto il
s e alin sta lle r R
em ova l of fr o nt dif f e re ntia l m ount in su la to r
< R ear R .H .> M
B990947 L
ow er arm bush
a rb or P
re ss fit tin g offr o ntd if f e re ntia lm ountin su la to r
< F ro nt, re ar L.H .> M
B990847 R
ear su sp ensio n
b ush re m ove r &
i n sta lle r base M
B990981 M
ount bush re -
m ove r & in sta lle r
r in g M
B991318 L
ow er arm bush
a rb or P
re ss fit tin g offr o ntd if f e re ntia lm ountin su la to r
< R ear R .H .> M
B9911 83 B
ush arb or M
B990843 D
ra glin k bush re -
m ove r & in sta lle r

O
.D .m m C
onte nts of to ol
( M B990925) O
.D .m m A M
B990926 3
9 A M
B990933 6
3.5 M
B990927 4
5 M
B990934 6
7.5 M
B990928 4
9.5 M
B990935 7
1.5 M
B990929 5
1 M
B990936 7
5.5 M
B990930 5
4 M
B990937 7
9 A M
B990931 5
7 B M
B990938 -
A M
B990932 6
1 C M
B990939 -

O
N-V EH IC LE SER VIC E
W HEEL BEA RIN G BACKLA SH CHEC K
1 . Rem ove th e ca lip er asse m bly and hold it w it h wir e s to
p re ve nt it fr o m fa llin g.
2 . Rem ove th e bra ke dis k fr o m hub.
3 . Set th e dia l gauge as sh ow n in th e dia gra m and move
t h e hub in th e axis to measu re backla sh .
L im it : 0 mm
4 . If th e backla sh exce eds th e lim it va lu e, dis a sse m ble hub
k n uckle to ch eck each co m ponent. If fr o nt hub asse m bly
b earin g is fa ult y , re pla ce th e fr o nt hub asse m bly .
F R O NT AXLE TO TA L BACKLA SH CHEC K
W hen th e ig in it io n sw it c h is in LO CK(O FF) posit io n, fr o nt
w heelco m es to sto p afte r tu rn in g th e pro pelle r sh aft by hand
d ue to th e fo rc e applie d to fr o nt w heel actu ato r. In sp ect th e
v e hic le in th e fo llo w in g pro ce dure :
1 . Turn th e ig nit io n sw it c h to LO CK(O FF) posit io n, and th en
p ut th e tr a nsfe r sh if t le ve r to th e 2H posit io n.
C au tio n
D o not ja ck up th e veh ic le .
2 . Turn th e pro pelle r sh aft until a clic k is heard .
3 . Turn th e co m panio n fla nge clo ckw is e until all pla y is
r e m ove d. M ake matin g mark s on th e dust co ve r of th e
c o m panio n fla nge wit h th at 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 until all pla y
i s re m ove d and measu re th e am ount of dis ta nce th ro ugh
w hic h th e matin g mark s move d.
L im it : 11 mm

L
ow er lim it M
B990934 M
B990938