Subaru IMPREZA GD 2007 Series Manual page 3524

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DIFFERENTIALS
1. General Description
A: SPECIFICATION
When replacing a rear differential assembly, select the correct one according to the following table.
NOTE:
Using a different rear differential assembly will cause the drive train and tires to drag or emit abnormal noise
when AWD is selected.
Model
Rear differential type
LSD type
Identification
Type of gear
Gear ratio
(Number of gear teeth)
Oil capacity
Rear differential gear oil
Model
Rear differential type
LSD type
Identification
Type of gear
Gear ratio
(Number of gear teeth)
Oil capacity
Rear differential gear oil
General Description
2.5i, OUTBACK
AT MT
T-type (Model without LSD)
—
EH EG
Hypoid gear
4.111 (37/9) 3.900 (39/10)
0.8 2(0.8 US qt, 0.7 Imp qt)
GL-5
STI
6MT
T-type (Model with LSD)
Torsen
HR
Hypoid gear
3.545 (39/11)
1.0 2(1.1 US qt, 0.9 Imp qt)
GL-5
DI-2
WRX
AT MT
T-type (Model with LSD)
Viscous coupling
P1 ER
3.900 (39/10) 3.700 (37/10)