| Model Code | Description | |
|---|---|---|
| 01 | 623.068 | FRAME/WHEELBASE EXTENSION |
| 02 | 623.068, 674.011 | FRAME/WHEELBASE EXTENSION |
| 03 | 623.023 | FRAME/WHEELBASE EXTENSION |
| 04 | 623.068, 623.468 | FRAME/WHEELBASE EXTENSION |
| 05 | 623.423, 648.413, 648.463, 648.473 | FRAME/WHEELBASE EXTENSION |
| 06 | 623.408 | FRAME/WHEELBASE EXTENSION |
| 07 | 623.468 | FRAME/WHEELBASE EXTENSION |
| 08 | 623.023, 648.013, 648.063, 648.073 | FRAME/WHEELBASE EXTENSION |
| 09 | 648.013 | FRAME/WHEELBASE EXTENSION |
| 10 | 648.013 | FRAME/WHEELBASE EXTENSION |
| 11 | 648.073 | FRAME/WHEELBASE EXTENSION |
| 12 | 648.413 | FRAME/WHEELBASE EXTENSION |
| 13 | 623.408, 648.413, 658.473 | FRAME/WHEELBASE EXTENSION |
| 14 | 648.463 | FRAME/WHEELBASE EXTENSION |