Subaru 2009 IMPREZA Service Manual page 2300

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DIFFERENTIALS

17) Remove the pilot bearing together with the front

bearing cone and spacer using the ST.

ST 398467700

(A) Pilot bearing

(D) Rear bearing cup

18) When replacing the bearings, use a brass bar

to tap out the front bearing cup and rear bearing

cup (in this order).

(A) 2 cutout portions along diagonal lines

(B) Tap alternately with brass bar.

Rear Differential

• Assemble in the reverse order of disassembly.

• Check and adjust each part during assembly.

• Keep the shims and washers in order, so that

they are not improperly installed.

• Thoroughly clean the surfaces on which the

shims, washers and bearings are to be installed.

• Apply gear oil when installing the bearings and

thrust washers.

• Be careful not to mix up the RH and LH bearing

• Use a new O-ring and gasket.

• Replace the oil seal with a new part at every dis-

• Be careful not to mix up the oil seal RH and LH.

• Apply differential gear oil to the lips when install-

ing the oil seal.

1) Adjusting preload for front and rear bearings

Adjust the bearing preload between front and rear

bearings with spacer and washer. Pinion height ad-

justing washer is not affected by this adjustment.

The adjustment must not be carried out with oil seal

(1) Install the rear bearing race into the differen-

tial carrier using ST1 and ST2.

ST1 398477701

ST2 398477703

(2) Install the front bearing race to the differen-

tial carrier using ST1 and ST2.

ST1 398477701

ST2 398477702