Subaru 2009 IMPREZA Service Manual page 2305

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12) Assembling differential case

Install the side gears and pinion mate gears, with

their thrust washers and pinion mate shaft, into the

differential case.

• Apply gear oil on both sides of the washer and on

the side gear shaft before installing.

• Insert the pinion mate shaft into the differential

case by aligning the lock pin holes.

(1) Measure the side gear backlash.

Side gear backlash:

0.10 — 0.20 mm (0.004 — 0.008 in)

(2) Adjust the backlash as specified by select-

ing side gear thrust washer.

Side gear thrust washer

0.75 — 0.80 (0.0295 — 0.0315)

0.80 — 0.85 (0.0315 — 0.0335)

0.85 — 0.90 (0.0335 — 0.0354)

Rear Differential

Thickness mm (in)

(3) Check the condition of rotation after apply-

ing oil to the gear tooth surfaces and thrust

washer surfaces.

(4) After inserting the pinion shaft lock pin into

differential case, stake the both sides of the

hole to prevent pin from falling off.

13) Install the driven gear to the differential case.

• Before installing bolts, apply seal material to bolt

Seal material:

THREE BOND 1324 (Part No. 004403042) or

• Make sure there is no clearance between the dif-

ferential case and driven gear.

• Tighten opposing bolts in order.

Tightening torque:

103 N·m (10.5 kgf-m, 76.0 ft-lb)

14) Press the side bearing into differential case us-

ST 398487700

DIFFERENTIALS