| Item | Part No. | Part Name | Qty | Serial No. |
| 238-23-00110 | TANDEM DRIVE ASS'Y,L.H. | 20028- | ||
| 238-23-00130 | TANDEM DRIVE ASS'Y,R.H. | 20028- | ||
| 1 | 238-23-12510 | CASE,L.H. | 20028- | |
| 238-23-12520 | CASE,R.H. | 20028- | ||
| \6\ | SEAT (WELDED) | 20028- | ||
| \6\ | PLATE (WELDED) | 20028- | ||
| 2 | 237-23-11141 | COVER | 20028- | |
| 3 | 237-23-11151 | GASKET | 20028- | |
| 4 | 01010-51230 | BOLT | 20028- | |
| 5 | 01602-21236 | WASHER | 20028- | |
| 6 | 238-23-11150 | COVER | 20028- | |
| 7 | 237-23-11151 | GASKET | 20028- | |
| 8 | 01010-51230 | BOLT | 20028- | |
| 9 | 01602-21236 | WASHER | 20028- | |
| 10 | 238-23-11210 | GAUGE | 20028- | |
| 11 | 07000-03022 | O-RING | 20028- | |
| 12 | 238-23-11130 | COVER | 20028- | |
| 13 | 238-23-11120 | GASKET | 20028- | |
| 14 | 01010-51230 | BOLT | 20028- | |
| 15 | 01602-21236 | WASHER | 20028- | |
| 16 | 238-23-11140 | COVER | 20028- | |
| 17 | 238-23-11120 | GASKET | 20028- | |
| 18 | 01010-51230 | BOLT | 20028- | |
| 19 | 01602-21236 | WASHER | 20028- | |
| 20 | 07030-00252 | BREATHER | 20028- | |
| 21 | 07044-12412 | PLUG | 20028- | |
| 22 | 07002-12434 | O-RING | 20028- |