Main Shaft Assembly for Single-range: Disassembly

WARNING: This page is about a different car, the 2006 Subaru Outback and 2006 Subaru Legacy. However, it is still accessible from the selected car via links, so may be relevant.

Put vinyl tape around main shaft spline to protect the oil seal from damage. Then pull out the oil seal and needle bearing by hand.
Remove the lock nut from transmission main shaft assembly for single range.
NOTE: Straighten the crimp before removing the lock nut.

ST1 498937000 TRANSMISSION HOLDER

ST2 499987003 SOCKET WRENCH (35)

Fig 1: Removing Lock Nut
Remove the 5th-Rev sleeve & hub assembly, bulk ring, 5th drive gear & needle bearing.

Fig 2: Identifying 5th-Rev Sleeve & Hub Assembly, Bulk Ring And 5th Drive Gear
Remove the snap ring and synchro cone stopper from the 5th-Rev sleeve & hub assembly.

Fig 3: Identifying Snap Ring And Synchro Cone Stopper
Using the ST1, ST2 and a press, remove the ball bearing, synchro cone and bulk ring (Rev).
NOTE:
- When replacing the sleeve & hub, replace them as a set.
- Do not disassemble the sleeve & hub; the aligning position is pre-matched.
- If it is necessary to disassemble, mark the engaging points on the splines beforehand.
- Do not reuse the ball bearing.
ST1 499757002 INSTALLER

ST2 498077400 SYNCHRO CONE REMOVER

Fig 4: Removing Ball Bearing, Synchro Cone And Bulk Ring Using Synchro Cone Remover ST2 498077400
Using ST1 and ST2, remove the rest of the parts.
NOTE:
- When replacing the sleeve & hub, replace them as a set.
- Do not disassemble the sleeve & hub; the aligning position is pre-matched.
- If it is necessary to disassemble, mark the engaging points on the splines beforehand.
ST1 899864100 REMOVER

ST2 899714110 REMOVER

Fig 5: Identifying ST1 899864100 Remover And ST2 899714110 Remover