1972 Ford Mustang Axle Information & Ratios
| Axle code | Ratio and type |
| 2 | 2.75 Open differential |
| K | 2.75 locking differential |
| 3 | 2.79 Open differential |
| 6 | 3.00 Open differential |
| O | 3.00 locking differential |
| B | 3.07 Open differential |
| 9 | 3.25Open differential |
| R | 3.25 locking differential |
| A | 3.50 Open differential |
| S | 3.50 locking differential |
| V | 4.11 Locking differential |
