Subaru 2009 IMPREZA Service Manual page 2129

16.Drive Pinion Shaft Assembly
A: REMOVAL
1) Remove the manual transmission assembly
from the vehicle. <Ref. to 5MT-21, REMOVAL,
Manual Transmission Assembly.>
2) Remove the transfer case together with the ex-
tension case assembly. <Ref. to 5MT-36, REMOV-
AL, Transfer Case
Assembly.>
3) Remove the transmission case. <Ref. to 5MT-
49, 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 ASSY for Single-Range
(B) Drive pinion shaft ASSY
B: INSTALLATION
1) Remove the front differential assembly.
2) Alignment marks/numbers on hypoid gear set:
The number (A) on top of the drive pinion, and the
number on the hypoid driven gear are set numbers
for the two gears. Use a pair having the same num-
bers.
The figure (B) below shows a number for shim ad-
justment. If no number is shown, the value is zero.
(A)
(A) Set number
(B) Number for shim adjustment
3) Place the drive pinion shaft assembly on trans-
mission main case RH without shim and tighten the
bearing mounting bolts.
Drive Pinion Shaft Assembly
and Extension Case
( A )
MT-00161
(A)
(B)
MT-00990
5MT-57
MANUAL TRANSMISSION AND DIFFERENTIAL
4) Perform 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 of 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 the 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 the 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
(A)
MT-00242
(A)
MT-00243