| Modelo | Ancho útil de entresurcos #1, mín. | Ancho útil de entresurcos #1, máx. |
|---|---|---|
| 351 Pequeño | 4547.6 mm - 14.9 pies. | 5385.8 mm - 17.7 pies. |
| 351 Grande | 5690.6 mm - 18.7 pies. | 6681.2 mm - 21.9 pies. |
| 350 Pequeño | 2743.2 mm - 9 pies. | 3709.4 mm - 12.2 pies. |
| 350 Grande | 3910.6 mm - 12.8 pies. | 4977.4 mm - 16.3 pies. |