Subaru 2004 Impreza Service Manual page 38

2. HYPOID GEAR BACKLASH
Adjust backlash by turning the holder in right side
case.
ST 499787000 WRENCH ASSY
ST
NOTE:
Each time holder rotates one tooth, backlash
changes by 0.05 mm (0.0020 in).
3. TOOTH CONTACT OF HYPOID GEAR
1) Adjust until the tooth contact is correct.
2) Check and adjust the tooth contact with follow-
ing.
• Tooth contact
Checking item:Tooth contact pattern is slightly
shifted toward to toe side under no-load
rotation. [When loaded, contact pattern moves
toward heel.]
(B)
(A) Toe side
(B) Heel side
Front Differential Assembly
MT-00176
0.05mm(0.0020 in)
MT-00296
(A)
AT-00207
5MT-107
MANUAL TRANSMISSION AND DIFFERENTIAL
• Face contact
Checking item: Backlash is too large.
Contact pattern
Corrective action: Reduce thickness of drive pinion
shim in order to bring drive pinion close to driven
gear.
• Flank contact
Checking item: Backlash is too small.
Contact pattern
AT-00208
AT-00212
AT-00209