Subaru Impreza 2003 Service Manual page 2225

(3) Obtain the thickness of pinion height adjust
shim to be inserted from the following formula,
and replace the inserted shim with this one.
T = T1 + (T2 x 0.01 − T3 x 0.01)
T Thickness of selected pinion height adjusting shim.
mm
T1 Thickness of inserted pinion height adjusting shim.
mm
T2 Punch mark number on installed drive pinion gear.
mm
T3 Punch mark number on new drive pinion gear.
mm
(Example of calculation)
T1 = 3.30, T2 = +2, T3 = −1
T = 3.30 + {(2 x 0.01) − (−1 x 0.01)} = 3.33
Result: Thickness = 3.33 mm
Therefore use the shim 38336AA310.
Pinion height adjusting shim
Part No.
38336AA230
38336AA240
38336AA250
38336AA260
38336AA270
38336AA280
38336AA290
38336AA300
38336AA310
38336AA320
38336AA330
38336AA340
38336AA350
38336AA360
38336AA370
38336AA380
38336AA390
38336AA400
38336AA410
38336AA420
REAR DIFFERENTIAL FOR T-TYPE
Thickness T 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)
DI-45
5) Install the selected pinion height adjusting shim
on drive pinion, and press-fit the rear bearing cone
into position with ST.
ST 18674AA000 INSTALLER
ST
6) Insert the drive pinion into differential carrier, in-
stall the previously selected bearing preload adjust-
ing spacer and washer.
(A)
(B)
(C)
(A) Drive pinion
(B) Bearing preload adjusting spacer
(C) Bearing preload adjusting washer
(D) Differential carrier
7) Insert the spacer, then press-fit the pilot bearing
with STs.
ST1 399780104 WEIGHT
ST2 899580100 INSTALLER
ST3 398507703 DUMMY COLLER
ST4 498937110 HOLDER DRIVE PINION
ST2
ST3
ST4
ST1
DIFFERENTIALS
DI-00085
(D)
DI-00086
ST4
ST1
DI-00322