Subaru XT 1988 Service Manual page 840

WHEELS AND AXLES
4-2
5) Install spacer and inner race of inner bearing onto the
spindle of trailing arm.
Stepped surface of the spacer must be faced toward the
bearing.
Fig. 50
inner bearing
2 Spacer
3 O-ring
A16-206
6) Install drum, inner race of outer bearing, washer, lock
washer and axle nut in this order onto the spindle.
Be sure to use new lock washer without fail.
ADJUSTING REAR WHEEL BEARING
1) Temporarily tighten axle nut with tightening torque of
49 N·m (5 kg-m, 36 ft-Ib), and then turn drum back and forth
alternately several times to properly seat bearing and ascertain
bearing stability.
A16-176
Fig. 51
2) Turn back nut 1/8 to 1110 in order to obtain correct
starting torque. Measure the starting force as shown.
25
Spring balance
A16-177
Fig. 52
Starting force when measured at hub bolt:
8.34 - 14.22 N (0.85 - 1.45 kg, 1.87 - 3.20 Ib)
Make sure there is no free play in the bearing.
3) Bend lock washer.
A16-202
Fig. 53
4) After installing O-ring to drum cap, install cap to brake
drum by lightly tapping with plastic hammer.
a. Do not use steel hammer etc.
b. Be so re to use new D-ring.