Subaru XT 1988 Service Manual page 740

4WD SYSTEM 3-4
Torque (Drive gear bolt):
93 -113 N·m (9.5 -11.5 kg-m, 69 - 83 ft-Ib)
Tighten diagonally while tapping the bolt heads.
12) Before installing side bearing, measure the bearing width
by using a dial gauge, WEIGHT (398227700) and GAUGE
(398237700).
Standard bearing width:
20.00 mm (0.7874 in)
Set the dial gauge needle to zero, using a standard bearing or
block of specified height in advance.
1 WEIGHT (398227700)
2 GAUGE (398237700)
3 Side bearing
Fig. 57
A14·071
13) Press side bearing cone onto differential case with
DRIFT (398487700) and ADAPTER (398497701) included
in PULLER SET (399527700).
1 DRIFT (398487700)
2 ADAPTER (398497701)
A 14-072
(2) When replacing differential case, differential carrier,
side bearing, and side bearing retainer, obtain the right
and left retainer shim thickness from the following
formulas.
A14·073
Fig.
59
T, (Left)
=
(A
+
C
+
G, - D)
x
0.01
+
0.76 - E (mm)
T2 (Right)
=
(B + 0 + G 2 )
x
0.01 + 0.76 - F (mm)
T, & T 2: Thickness of left and right side bearing
retainer shim (mm)
A&B
C&D
E&F
Number marked on differential carrier.
Number marked on differential case.
Difference of width of left and right side
bearing from standard width 20.0 mm, ex-
pressed in a unit of 0.01 mm.
For example, if the bearing measured width
is 19.89 mm, value of E or F is as follows.
20.00 - 19.89
=
0.11
(E
or F)
G, & G 2 :
Number marked on side bearing retainer.
Side bearing
retainer
C&D
G
A14-074
14) Adjusting side bearing retainer shims If a number is not marked, regard it as zero.
(1) The drive gear backlash and side bearing preload can
be determined by the side bearing retainer sh im thickness.
Use several shims to obtain the calculated thickness.
27