Drive Pinion Shaft Assembly - Subaru 2004 Impreza Service Manual

19.Drive Pinion Shaft Assembly

A: REMOVAL
1) Remove the manual transmission assembly
from vehicle. <Ref. to 5MT-38, REMOVAL, Manual
Transmission Assembly.>
2) Remove the transfer case with extension case
assembly. <Ref. to 5MT-53, REMOVAL, Transfer
Case and Extension Case Assembly.>
3) Remove the transmission case. <Ref. to 5MT-
66, REMOVAL, Transmission Case.>
4) Remove the drive pinion shaft assembly.
NOTE:
Use a hammer handle, etc. to remove if too tight.
( B )
(A) Main shaft assembly
(B) Drive pinion shaft assembly
B: INSTALLATION
1) Remove the differential assembly.
2) Alignment marks/numbers on hypoid gear set:
The upper number on drive pinion is the match
number for combining it with hypoid driven gear.
The lower number is for shim adjustment. If no low-
er number is shown, the value is zero. The number
on hypoid driven gear indicates a number for com-
bination with drive pinion.
(1)
(1) Drive pinion
(2) Hypoid driven gear
3) Place the drive pinion shaft assembly on right
hand transmission main case without shim and
tighten the bearing mounting bolts.
Drive Pinion Shaft Assembly
( A )
MT-00161
(1)
(2)
MT-00241
5MT-91
MANUAL TRANSMISSION AND DIFFERENTIAL
4) Inspection and adjustment of ST:
NOTE:
• Loosen the two bolts and adjust so that the scale
indicates 0.5 correctly when the plate end and the
scale end are on the same level.
• Tighten the two bolts.
ST 499917500 DRIVE PINION GAUGE
ASSY
(B)
ST
(A) Plate
(B) Scale
5) Position the ST by inserting the knock pin of ST
into the knock hole in transmission case.
ST 499917500 DRIVE PINION GAUGE
ASSY
6) Slide the drive pinion gauge scale with finger tip
and read the value at the point where it matches
with the end face of drive pinion.
ST 499917500 DRIVE PINION GAUGE
ASSY
ST
(A) Adjust clearance to zero without shim.
7) The thickness of shim shall be determined by
adding the value indicated on drive pinion to the
value indicated on ST. (Add if the number on drive
pinion is prefixed by + and subtract if the number is
prefixed by −.)
ST 499917500 DRIVE PINION GAUGE
ASSY
8) Select one to three shims from the next table for
the value determined as described above and take
a shim thickness which is closest to the indicated
value.
(A)
MT-00242
(A)
MT-00243