| Item | Part No. | Part Name | Qty | Serial No. |
| 1 | 175-27-32730 | CASE,L.H. | 23980- | |
| 1 | 175-27-32740 | CASE,R.H. | 23980- | |
| 2 | 175-27-31472 | GASKET | 23980- | |
| 3 | 175-27-31463 | FLANGE | 12128- | |
| 4 | 01010-31850 | BOLT | 12128- | |
| 5 | 01643-31845 | WASHER | 12128- | |
| 6 | 175-27-31495 | PINION | 12128- | |
| 7 | 170-09-13210 | BEARING | 12128- | |
| 8 | 175-27-31161 | CAGE | 12128- | |
| 9 | 07000-05235 | O-RING | 12128- | |
| 10 | 07013-10120 | SEAL,OIL | 12128- | |
| 11 | 01010-31640 | BOLT | 12128- | |
| 12 | 01643-31645 | WASHER | 12128- | |
| 13 | 170-27-11232 | SPACER | 12128- | |
| 14 | 195-27-12620 | WASHER | 20080- | |
| 15 | 170-21-12141 | NUT | 12128- | |
| 16 | 01010-31225 | BOLT | 12128- | |
| 17 | 01643-31232 | WASHER | 12128- | |
| 18 | 170-09-13220 | BEARING | 12128- | |
| 19 | 175-27-31233 | PINION | 12128- | |
| 20 | 175-27-31255 | GEAR | 12128- | |
| 21 | 175-27-31260 | KEY | 12128- | |
| 22 | 175-27-31270 | SPACER | 12128- | |
| 23 | 175-27-31282 | HOLDER | 12128- | |
| 24 | 175-27-32470 | WASHER | 12128- | |
| 25 | 01010-31230 | BOLT | 12128- | |
| 26 | 170-09-13230 | BEARING | 12128- | |
| 27 | 170-09-13240 | BEARING | 12128- | |
| 28 | 01010-32050 | BOLT | 17325- | |
| 29 | 01643-32060 | WASHER | 12128- | |
| 30 | 04020-01842 | PIN | 17325- | |
| 31 | 07049-02025 | PLUG | 23980- | |
| 32 | 07040-13618 | PLUG | 17325- | |
| 33 | 07002-03634 | O-RING | 17325- | |
| 34 | 07044-03620 | PLUG | 12128- | |
| 35 | 07002-03634 | O-RING | 17325- | |
| 36 | 175-27-32611 | GUARD,L.H. | 12128- | |
| 36 | 175-27-32641 | GUARD,R.H. | 12128- | |
| 37 | 01010-32455 | BOLT | 12128- | |
| 38 | 01643-32460 | WASHER | 12128- | |
| 39 | 175-27-31530 | PLATE | 12128- | |
| 40 | 175-27-31540 | LOCK | 12128- | |
| 41 | 01010-31230 | BOLT | 12128- |