1968 Ford Mustang Axle Information & Ratios
| Axle code | Ratio & type |
| 0 | 2.50 open differential |
| 1 | 2.75 open differential |
| A | 2.75 locking differential |
| 2 | 2.79 open differential |
| B | 2.79 locking differential |
| 3 | 2.80 open differential |
| C | 2.80 locking differential |
| 4 | 2.83 open differential |
| D | 2.83 locking differential |
| 5 | 3.00 open differential |
| E | 3.00 locking differential |
| 6 | 3.20 open differential |
| F | 3.20 locking differential |
| 7 | 3.25 open differential |
| G | 3.25 locking differential |
| 8 | 3.50 open differential |
| H | 3.89 locking differential |
| Year | Tag Code | Type | Ring Gear Diameter | Ratio :1 | Ring Teeth | Pinion Teeth |
| 1968 | WCY-R1 | Conventional | 7.25 | 2.83 | 34 | 12 |
| 1968 | WCY-E1 | Conventional | 7.25 | 3.20 | 32 | 10 |
| 1968 | WCY-AJ1 | Conventional | 7.25 | 3.20 | 32 | 10 |
| 1968 | WCZ-F1 | Conventional | 8.00 | 3.00 | 39 | 13 |
| 1968 | WDJ-C1 | Limited Slip | 8.00 | 3.00 | 39 | 13 |
| 1968 | WDV-A1 | Conventional | 7.25 | 2.83 | 34 | 12 |
| 1968 | WDV-B1 | Conventional | 7.25 | 2.83 | 34 | 12 |
| 1968 | WDV-C1 | Conventional | 7.25 | 3.20 | 32 | 10 |
| 1968 | WDV-E | Limited Slip | 7.25 | 3.20 | 32 | 10 |
| 1968 | WDV-G | Conventional | 7.25 | 3.20 | 32 | 10 |
| 1968 | WDV-H | Limited Slip | 7.25 | 3.20 | 32 | 10 |
| 1968 | WDW-K1 | Conventional | 8.00 | 2.79 | 39 | 14 |
| 1968 | WDW-B1 | Conventional | 8.00 | 3.00 | 39 | 13 |
| 1968 | WDW-C1 | Conventional | 8.00 | 3.25 | 39 | 12 |
| 1968 | WDW-D1 | Conventional | 8.00 | 3.50 | 35 | 10 |
| 1968 | WDW-J | Conventional | 8.00 | 2.79 | 39 | 14 |
| 1968 | WDW-F | Conventional | 8.00 | 3.00 | 39 | 13 |
| 1968 | WDY-A1 | Conventional | 8.00 | 3.00 | 39 | 13 |
| 1968 | WDY-B1 | Conventional | 8.00 | 3.25 | 39 | 12 |
| 1968 | WCZ-V | Conventional | 8.00 | 2.79 | 39 | 14 |
| 1968 | WDY-C1 | Conventional | 8.00 | 3.50 | 35 | 10 |
| Year | Tag Code | Type | Ring Gear Diameter | Ratio :1 | Ring Teeth | Pinion Teeth |
| 1968 | WDZ-B1 | Limited Slip | 8.00 | 3.00 | 39 | 13 |
| 1968 | WDZ-C1 | Limited Slip | 8.00 | 3.25 | 39 | 12 |
| 1968 | WDZ-E | Limited Slip | 8.00 | 3.00 | 39 | 13 |
| 1968 | WEA-A1 | Limited Slip | 8.00 | 3.00 | 39 | 13 |
| 1968 | WEA-F1 | Limited Slip | 8.00 | 3.25 | 39 | 12 |
| 1968 | WEB-E6 | Conventional | 9.00 | 3.00 | 39 | 13 |
| 1968 | WEB-F6 | Conventional | 9.00 | 3.25 | 39 | 12 |
| 1968 | WEC-D5 | Conventional | 9.00 | 3.00 | 39 | 13 |
| 1968 | WEC-E5 | Conventional | 9.00 | 3.25 | 39 | 12 |
| 1968 | WED-A6 | Limited Slip | 9.00 | 3.25 | 39 | 12 |
| 1968 | WED-D6 | Limited Slip | 9.00 | 3.00 | 39 | 13 |
| 1968 | WEE-D5 | Limited Slip | 9.00 | 3.00 | 39 | 13 |
| 1968 | WES-F | Conventional | 9.00 | 3.00 | 39 | 13 |
| 1968 | WES-G | Conventional | 9.00 | 3.25 | 39 | 12 |
| 1968 | WEB-G | Conventional | 9.00 | 3.89 | 35 | 9 |
| 1968 | WEB-H1 | Conventional | 9.00 | 2.75 | 44 | 16 |
| 1968 | WEB-J1 | Conventional | 9.00 | 2.75 | 44 | 16 |
| 1968 | WEB-K | Conventional | 9.00 | 3.25 | 39 | 12 |
| 1968 | WEC-F | Conventional | 9.00 | 2.75 | 44 | 16 |
| 1968 | WEC-G | Conventional | 9.00 | 2.75 | 44 | 16 |
| 1968 | WES-H | Conventional | 9.00 | 3.50 | 35 | 10 |
| 1968 | WEZ-A | Conventional | 7.25 | 3.20 | 32 | 10 |
| 1968 | WEZ-C | Conventional | 7.25 | 2.83 | 34 | 12 |
| Year | Tag Code | Type | Ring Gear Diameter | Ratio :1 | Ring Teeth | Pinion Teeth |
| 1968 | WES-M | Conventional | 9.00 | 3.25 | 39 | 12 |
| 1968 | WES-N | Conventional | 8.75 | 3.00 | 39 | 13 |
| 1968 | WES-P | Conventional | 8.75 | 3.25 | 39 | 12 |
| 1968 | WES-R | Limited Slip | 8.75 | 3.25 | 39 | 12 |
| 1968 | WES-S | Conventional | 9.00 | 2.75 | 44 | 16 |
| 1968 | WES-T | Conventional | 9.00 | 2.75 | 44 | 16 |
| 1968 | WCY-R1 | Conventional | 7.25 | 2.83 | 34 | 12 |
| 1968 | WCY-AJ2 | Conventional | 7.25 | 3.08 | 37 | 12 |
| 1968 | WCZ-F1 | Conventional | 8.00 | 3.00 | 39 | 13 |
| 1968 | WCZ-V | Conventional | 8.00 | 2.79 | 39 | 14 |
| 1968 | WDJ-C1 | Limited Slip | 8.00 | 3.00 | 39 | 13 |
| 1968 | WDV-B | Conventional | 7.25 | 2.83 | 34 | 12 |
| 1968 | WDV-G | Conventional | 7.25 | 3.20 | 32 | 10 |
| 1968 | WDW-H | Limited Slip | 7.25 | 3.20 | 32 | 10 |
| 1968 | WDW-B1 | Conventional | 8.00 | 3.00 | 39 | 13 |
