2001 SUZUKI GRAND VITARA Owners Manual

7F-4 DIFFERENTIAL (REAR)
Precaution for Maintenance Service
•When having driven through water, check immediately if
water has entered (if so, oil is cloudy). Water mixed oil must
be changed at once.
•Whenever vehicle is hoisted for any other service work than
oil change, also be sure to check for oil leakage and status of
breather hoses.
Differential Gear Oil Change
1) Before oil change or inspection, be sure to stop engine and
lift up vehicle horizontally.
2) Check oil level and existence of leakage. If leakage is found,
correct its cause.
3) Drain old oil and pour proper amount of gear oil as specified
(roughly up to level hole).
4) Torque drain plug (3) and level/filler plugs (2) to specification.
“A” : Sealant 99000-31110
Tightening torque
Differential oil level/filler plug (a) :
50 N·m (5.0 kg-m, 36.5 lb-ft)
Differential oil drain plug (b) :
28 N·m (2.8 kg-m, 20.5 lb-ft)
Hypoid gear oil :
API GL-5, SAE 75W-85, 80W-90 or 90
Oil capacity :
2.5 liters (5.3/4.4 US/Imp. pt.) NOTE:
Hypoid gear oil must be used for differential.
It is highly recommended to use SAE 80W-90 viscosity.
1. Breather hose

DIFFERENTIAL (REAR) 7F-5
Rear Differential Assembly
Dismounting
1) Lift up vehicle and drain oil from rear differential housing.
2) Remove rear brake drums and pull out right and left rear axle
shafts. (Refer to “REAR AXLE SHAFT REMOVAL” of Section
3E.)
3) Before removing propeller shaft, give match marks (1) on
joint flange and propeller shaft as shown.
4) Remove propeller shaft by removing its flange bolts and
nuts.
5) Remove differential assembly by removing its 8 fastening
bolts (1).
Remounting
1) Clean mating surfaces of rear axle and differential assembly
and apply sealant to axle side evenly.
“A” : Sealant 99000-31110
2) Install differential assembly to axle and fix it with bolts (1)
tightened to specified torque.
Tightening torque
Differential carrier bolts (a) :
55 N·m (5.5 kg-m, 40.0 lb-ft)

7F-6 DIFFERENTIAL (REAR)
3) Install propeller shaft to joint flange aligning match marks
and torque flange nuts to specification. Apply thread lock
cement to thread part of bolt if reused.
“A” : Cement 99000-32110
Tightening torque
Propeller shaft flange nuts (a) :
60 N·m (6.0 kg-m, 43.5 lb-ft)
4) Install right and left rear axle shafts and drums.
(Refer to “REAR AXLE INSTALLATION” of Section 3E and
rear brake drum installation of Section 5.)
5) Install wheels.
6) Fill hypoid gear oil as specified and tighten plug to specifica-
tion.
7) Lower lift.
Unit Repair
Disassembling Unit
1) Hold differential assembly securely and put identification
marks on differential side bearing caps (6).
2) Take off differential side bearing lock plates (4) and differen-
tial side bearing caps (6) by removing their bolts and then
take out bearing adjusters (5), side bearing outer races and
drive bevel gear with differential case.
3) Remove drive bevel gear (hypoid gear), differential gears,
differential pinions and pinion shafts.
a) With aluminum plates (2) placed on vise first, grip differen-
tial case with it and remove drive bevel gear (hypoid gear)
(3) by removing its bolts (1).
1. Differential carrier
2. Drive bevel gear assembly
3. Differential case
A: Identification mark
1
3
2

DIFFERENTIAL (REAR) 7F-7
b) Remove differential left case (2) from differential right case
(1).
c) Remove pinion shafts, differential gears, washers, differen-
tial pinions, spring washers, thrust washers.
4) Using special tools, pull out differential side bearings (1).
Special tool
(C) : 09913-85230
(D) : 09913-61510
5) Remove drive bevel pinion (hypoid gear) assembly.
a) Hold universal joint flange with special tool and then
remove flange nut by using power wrench (4 - 10 magnifica-
tion) (2).
Special tool
(E) : 09922-66021
2
1
1. Socket wrench

7F-8 DIFFERENTIAL (REAR)
b) Make mating marks (1) on drive bevel pinion and compan-
ion flange.
c) Remove companion flange from drive bevel pinion. Use
special tool if it is hard to remove.
Special tool
(F) : 09913-65135
d) Remove drive bevel pinion with rear bearing, shim and
spacer from carrier.
If it is hard to remove, screw an used nut into drive bevel
pinion and hammer on that nut with a plastic hammer but
never directly on drive bevel pinion.
e) Remove drive bevel pinion rear bearing (2) by using bear-
ing puller (3) and press. CAUTION:
Don't make mating mark on the coupling surface of the
flange.
1. Drive bevel pinion

DIFFERENTIAL (REAR) 7F-9
6) Using a hammer and brass bar (1), drive out front bearing
outer race with bearing (2) and oil seal (3).
7) Drive out rear bearing outer race in the same way as in the
step 6).
Component Inspection
•Check companion flange for wear or damage.
•Check bearings for wear or discoloration.
•Check differential carrier for cracks.
•Check drive bevel pinion and drive bevel gear for wear or cracks.
•Check differential gears, pinions and pinion shafts for wear or damage.
•Check differential gear spline for wear or damage.
Sub-Assembly Adjustment and Reassembly
Judging from faulty conditions noted before disassembly and
what is found through visual check of bearing and gear tooth etc.
after disassembly, prepare replacing parts and proceed to reas-
sembly according to procedures as described below.
CAUTION:
Drive bevel gear and pinion must be replaced as a set
when either replacement becomes necessary.
When replacing taper roller bearing, replace as inner
race & outer race assembly.

7F-10 DIFFERENTIAL (REAR)
Differential carrier
For press-fitting drive bevel pinion bearing outer races, use spe-
cial tools as shown in the figure.
Special tool
(A) : 09924-74510
(B) : 09926-68310
(C) : 09913-75510
Differential case
1) After applying differential oil to differential gear (4), pinions
(5), pinion shafts (6), thrust washer (2) and spring washer
(1), install them in differential right case (3).
For correct installing direction of thrust washer (2) and spring
washer (1), refer to the figure.
2) When installing pinion shaft No.2 (2) (shorter) into differential
case and pinion, insert its “a” side into pinion joint (1).
3) Check differential pinion gear (1) for smooth rotation.
1. Differential carrier
NOTE:
“a” is longer than “b”. (“a” > “b”)
1
2
a
b
1

DIFFERENTIAL (REAR) 7F-11
4) In the same manner as described in Step 1), install thrust
washer (2), spring washer (1) and differential gear (4).
5) Install differential left case (1) and then tighten screws to
specified torque.
“A” : Cement 99000-32110
Tightening torque
Differential case screw (a) :
9 N·m (0.9 kg-m, 6.5 lb-ft)
6) Clean and degrease mating surface of drive bevel gear
(hypoid gear) (1).
7) Apply thread lock cement to hatched part of drive bevel gear
(1) as shown in the figure.
“A” : Cement 99000-32110
8) Put drive bevel gear (3) on differential case (1) and fasten
them with bolts (2) by tightening them to specified torque.
Use thread lock cement for bolts (2).
“A” : Cement 99000-32110
Tightening torque
Bevel gear bolts (a) : 105 N·m (10.5 kg-m, 76.0 lb-ft)
3. Differential left case
5. Differential pinion
3 Differential right case1
2, (a), “A”
32, (a), “A”
“
A”
1
CAUTION:
Use of any other bolts than that specified is prohibited.1
2, (a), “A”
3