Subaru 2002 IMPREZA Service Manual page 1986

DIFFERENTIALS
15) Re-check the crown gear-to-pinion backlash.
Backlash:
0.10 — 0.20 mm (0.0039 — 0.0079 in)
16) Check the crown gear runout on its back sur-
face, and make sure that pinion and crown gear ro-
tate smoothly.
Limit of runout:
Less than 0.05 mm (0.0020 in)
17) Checking and adjusting tooth contact of crown
gear
(1) Apply an even coat of red lead on both sides
of three or four teeth on the crown gear. Check
the contact pattern after rotating the crown gear
several revolutions back and forth until a definite
contact pattern appears on the crown gear.
(2) When the contact pattern is incorrect, read-
just according to the instructions given in
"TOOTH CONTACT PATTERN".
NOTE:
Be sure to wipe off red lead completely after adjust-
ment is completed.
REAR DIFFERENTIAL FOR T-TYPE
G3M1047
S3M0525
DI-36