Subaru Impreza 2003 Service Manual page 2217

2) Adjusting drive pinion height
Adjust the drive pinion height with shim installed
between the rear bearing cone and back of pinion
gear.
(1) Install the ST2.
Front and rear bearing preload
For new bearing:
18.1 — 38.8 N (1.8 — 4.0 kgf, 4.1 — 8.7 lb)
at companion flange bolt hole
NOTE:
At this time, install a pinion height adjusting shim
which is temporarily selected or the same as that
used before. Measure and record the thickness.
ST1 398507702 DUMMY SHAFT
ST2 398507701 DIFFERENTIAL CARRIER
GAUGE
ST3 398507703 DUMMY COLLAR
ST3
(A) Pinion height adjusting shim
(2) Measure the clearance N between the end
of ST2 and end surface of ST1 by using a thick-
ness gauge.
NOTE:
Make sure there is no clearance between the case
and ST2.
ST1 398507702 DUMMY SHAFT
ST2 398507701 DIFFERENTIAL CARRIER
GAUGE
ST2
ST1
REAR DIFFERENTIAL FOR T-TYPE
ST1 ST2
RH
N
LH
(A)
DI-00083
DI-00084
(3) Obtain the thickness of pinion height adjust-
ing shim to be inserted from the following formu-
la, and replace the temporarily installed shim
with this one.
T = To + N − (H × 0.01) − 0.20 mm (0.0079 in)
NOTE:
Use copies of this page.
T Thickness of pinion height adjusting
shim mm (in)
To Thickness of shim temporarily inserted
mm (in)
N Reading of thickness gauge mm (in)
H Figure marked on drive pinion head
Memo:
(Example of calculation)
To = 2.20 + 1.20 = 3.40 mm
N = 0.23 mm H = + 1
T = 3.40 + 0.23 − 0.01 − 0.20 = 3.42
Result: Thickness = 3.42 mm
Therefore use the shim 383605200.
Pinion height adjusting shim
Part No.
383495200
383505200
383515200
383525200
383535200
383545200
383555200
383565200
383575200
383585200
383595200
383605200
383615200
383625200
383635200
383645200
383655200
383665200
383675200
383685200
DI-37
DIFFERENTIALS
Thickness mm (in)
3.09 (0.1217)
3.12 (0.1228)
3.15 (0.1240)
3.18 (0.1252)
3.21 (0.1264)
3.24 (0.1276)
3.27 (0.1287)
3.30 (0.1299)
3.33 (0.1311)
3.36 (0.1323)
3.39 (0.1335)
3.42 (0.1346)
3.45 (0.1358)
3.48 (0.1370)
3.51 (0.1382)
3.54 (0.1394)
3.57 (0.1406)
3.60 (0.1417)
3.63 (0.1429)
3.66 (0.1441)