| Item | Part No. | Part Name | Qty | Serial No. |
| 56B-23-20053 | Axle Assembly, Center | 2637- | ||
| 56B-23-20052 | Axle Assembly | 2633-2636 | ||
| 56B-23-22052 | Final Drive Assembly | 2637- | ||
| 56B-23-22051 | Final Drive Assembly | 2633-2636 | ||
| 56B-23-25052 | Final Drive Assembly, R.H. | 2637- | ||
| 56B-23-25051 | Final Drive Assembly, R.H. | 2633-2636 | ||
| 1 | 56B-22-12530 | Gear | 2633- | |
| 2 | 421-22-12770 | Bearing | 2633- | |
| 3 | 56B-22-12610 | Carrier | 2633- | |
| 4 | 424-22-12510 | Pin | 2633- | |
| 5 | 04260-01587 | Ball, Steel | 2633- | |
| 6 | 07044-13620 | Plug | 2633- | |
| 7 | 07002-13634 | O-ring | 2633- | |
| 8 | 56B-22-12650 | Cover | 2633- | |
| 9 | 01010-61235 | Bolt | 2633- | |
| 10 | 01643-31232 | Washer | 2633- | |
| 11 | 07000-15280 | O-ring | 2633- | |
| 12 | 286-22-12630 | Button | 2633- | |
| 13 | 07000-15410 | O-ring | 2633- | |
| 14 | 01252-41025 | Bolt | 2633- | |
| 15 | 56B-22-12631 | Retainer | 2633- | |
| 16 | 23W-22-22350 | Bearing | 2633- | |
| 17 | 421-22-12220 | Retainer | 2633- | |
| 18 | 01010-61450 | Bolt | 2633- | |
| 19 | 421-22-12190 | Shim, T=1.0mm | 2633- | |
| 19 | 421-22-12180 | Shim, T=0.5mm | 2633- | |
| 19 | 421-22-12170 | Shim, T=0.2mm | 2633- | |
| 19 | 421-22-12160 | Shim, T=0.05mm | 2633- | |
| 20 | 07044-12412 | Plug | 2633- | |
| 21 | 07002-12434 | O-ring | 2633- | |
| 22 | 07000-15300 | O-ring | 2633- | |
| 23 | 56B-22-13210 | Tube | 2633- | |
| 24 | 56B-22-12541 | Gear, Ring | 2633- | |
| 25 | 421-22-12790 | Bearing | 2633- | |
| 26 | 56B-22-12342 | Hub | 2637- | |
| 26 | 56B-22-12341 | Hub | 2633-2636 | |
| 27 | 421-22-12360 | Plate | 2633- | |
| 28 | 01010-60820 | Bolt | 2633- | |
| 29 | 01643-30823 | Washer | 2633- |