Page 89 of 279
CLUTCH
1 FEATURES 1
OUTL!NE
..................................................
OUfLlNE OF CONSTRUCTION
.................
;I f SPECIFtCATlONS
....................................
H- 2
13EOtiX-301
H
3
,
1
$
i
r’ :
Page 90 of 279
OUTLINE
OUTLINE OF CONSTRUCTlON
l A hydraulic clutch control mechanism IS used.
l The basic construction is the same as the previous 323 BP DOl-fC turbo models, except that the thickness
of clutch disc.
t3EOHX-302
SPECIFICATIONS
I Clutch control
1 Hydraulic
I
Clutch cover
Type
Set load N [kgf, lbf] Diaphragm spring
5,494 (560, 1,232)
Outer dlarneter mm {in)
230 19.05)
1
1 Inner diameter mm {in) 1
155 [6.10]
Clutch disc Pressure plate side
mm {ini 3.5 (0.14) 3.2 [0.13]
1 Thickness 1 I
I
_ Flywheel Btde
mm {in1 . 3.5 (0 14)
3.2 (0.13j
Type Suspended
Pedal ratio 6.55
Clutch pedal
Full stroke mm ijn]
I 135 t5.311
1
I Hetght (With carpet)
mm tin{ 196-204 { 7.72-6.03 1
1 Clutch master cylinder 1 tnner dtameter mm [in] 15.87 10.625)
I
1 Ctutch release cylinder
1 Inner diameter mm {in)
I 19.05 [0.7501
I
Clutch fluid SAE 31703 or FMVSSI 16 DOT-3
1
13EOHX-303
H-2
Page 91 of 279
I
J3
MANUAL TRANSAXLE AND
TRANSFER UNIT (G25MX-R)
:r
Y
OUTLINE .I.,..*..*..........................*..........* J3- 2
OUTLINE OF CONSTRUCTION . . . . . . n . . . . . . . l . 5% 2 I
SPECIFICATIONS
..m . . . . . . . l .,......... *.* .,........ J3- 2
13EOJ3-301
3
Page 92 of 279

OUTLCNE
OUTLDJE OF CONSTRUCTION
. The 323 GT-R is added to the 323 BP DOHC turbo model lineup.
l All GT-R modek are equpped with the G25MX-R (GSMX-R) manual transaxle and transfer unit.
l The transaxle and transfer unit is the same as in the 323 BP DOt-tC turbo models, except that the speedo-
meter gear ratio is changed.
Note
l Transaxk code is as shown.
G25MX-R
--r--r T
13EOJ3-302
SPECIFtCATIONS
Transaxle and Transfer Unit
Item
Transaxte control
Synchromesh system
Gear ratio Model/Engine
Forward
Reverse
1 st
2nd
3rd
4th
1 5th
Reverse
FInal gear rat10 I
Speedometer gear ratio f
Type
Number of rrng Outer
gear teeth
Inner
Center diff erentlal Number of plnion Outer
gear teetn
Inner
Numbef of sun Pinion gear side
gear teeth
idler gear side
Number of idler gear teeth
Grade
Oh Vtscosity All-season
Above -18OC { O°F 1
Capacity t ( LB qt, Imp qtl 323 GT-R
0.717 I Other
3.166 323 4WD
BP DOHC turbo
Floor shift
Synch romesh
Setecttve slrdrng and synchromesh
3.454
1.833
I.310
0.970
4.214
1.045
I 1 .OUU
Pfanetary carrier
59
I
75
14
14
43
43
37
API service U-4
ATF Dexron@II or M-III
SAE 75W-90
2.6 (2.7, 2.2)
13EOJ3-303
Transfer Carrier
Number
Orl of
- teeth
Grade
Viscosity
CaDacitv Rung gear
Pinron gear
Above -18OC fO°F]
Below -t8OC I PF 1
L I US at. imn at 1 37
31
API service ‘Gt-5
SAE 90
SAE BOW
0 5 10.53. 0.44 t
J3-2 ._
Page 93 of 279
FRONT AND REAR AXLES
INDEX ..*** . . . . . l . . . ...* . . . . . . . ..**...I* . . . . . .*..*.* . . . . . . . M- 2
1 FEATURES 1
OUTIJNE .................................................
M- 3
OUTLINE Of CONSTRUCTION
................. M- 3
SPECIFICATIONS ....................................
M- 3 t
SUPPLEMENTAL SERVICE INFORMATION.. M- 4
FRONT AXLE
l ,..,..,..............,.....*.............. M- 5
PREPARATION . . . . . . . . ..*.*...........m..........*... M- 5
WHEEL HUB, STEERING KNUCKLE . . . ..I.... M- 6
REAR AXLE *...............*............................ M-l 1
PREPARATION
l . . . . ..*..*...................*..*..... M-l 1
WHEEL HUB, KNUCKLE . . . . . . . . . . . . . . . . . . . . . . . . .
M-12
)I
13EOMX.301
q
Page 94 of 279
INDEX
13EOMX-302
1, Front axle
2. Rear axle
Wheel hub, steering knuckle
Wheel hub, knuckle
Removal I Inspection I
Removal I Inspection I
Installation
..1*.,..*............*......*... page M- 6
Installation . . . . . . . . . . . . . . , . . . . . . . . . . , , . ..-.
Disassembly ! Inspection I
Disassembly / lrispection I p&ge M-l 2
Assembly
. . . . . . . . . . . . . . . . . . . . . . . . . . . . ..I.. page M- 8
Assembly ,..........................,..... page M-l 4
M-2
.
SPEC
Joint
--
Lengt
SE”
--
Rear
--
Joint
--
Lengt
-e
Shak
--
Johi
-m
tengt
--
Shat:
Front
I3eari
&z
--
Bear jr --
Rear
Redrll -- Difl et-t
Di#ert
Numt
Page 95 of 279

OUTLINE M
OUTttNE
OUTLiNE OF CONSTRUCTION
l TKe construction and operation of the front and rear axles are basically the same as previous models.
l Because of the use of a high power engine, the following parts are modified to improve rigidity.
(I) Larger front and rear bearings are used.
(2) Larger front and rear knuckles are used.
(3) A five-stud wheel hub is used.
l An ice scraper is newly installed on the rear knuckle to prevent ice from building up on the brake caliper.
(Refer to page M-14.)
13EOMX-303
SPECIWCATIONS
Hem Speclficatlons
Front driveshaft
Joint type inside
Double offset joint
Outsrde Bell joint
Length of joint (between center of joint) Right
392 I15.4)
mm lrn)
Left 306 IO.831
Shaft drameter mm fin)
21.0 (0.83)
Rear driveshaft
Inside
Joint type Double offset joint
Outside 5ell joint
Length of joint (between center of joint) Right
519.5 [ 20.5 1
mm [in]
Left.
489.5 ( 19.3 )
Shaft diameter mm (in) 21.0 [O&3]
Joint shaft
I
Length of joint
Shaft diameter
Front axle
mm jin] 357.2 114.11
mm {in] 21.0 {0.83]
4
Bearing play axial direction mm tin)
0.05 IO.002 ]
I
Rear axle
Bearing play axial direction mm (inj
Rear dtfferentlal (viscous limited slip differential) 0.05 (0.002 1
Reduction aear Hypoid gear
Differentral gear
Drfferential ratio Straight bevel gear
3.909
Number of teeth Ring gear .
Drive binion aear
43
If
Fluid I Grade API Service GL-5
Above -t8*C (O*F) SAE 90
Viscosity .
Below -18*C i O*Fl SAE 8OW
1 I Capacity L I US qt, imp stl 1 0.65 !O.SS, 0.571
1
13EOMX-304
M-3
Page 96 of 279
M SUPPLEMENTAL SERVICE INFORMATION
SUPPLEMENTAL SERVICE INFORMATION
The foIlowIng points in this section are changed in comparison with Mazda 323 Workshop Manuals
(1206-f O-89F) and (1229-l O-89L).
Front axle
l Removal I Inspection I Installation
l Disassembly I Inspection / Assembly
Rear axle
l Removal / Inspection I Installation l Disassembly / Inspection I Assembly
13EOMX-305
t
,
c
.
c!
M-4
.
r&
-s
FRC
PREF
SST
-m
49 0’
Pulle
--
49 Gl
Atkd
(Part
49 Gc
--
49 FC
I n.stail beam
--
49 F3
Attact
:Part
t 49 FO
--
49 Frl
4ttac P 58 8 : Part < $9 Fcl,
--
a9 G3
nstallt