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| Model | Years | Speeds | Drive Train | Trans Model |
| Eldorado | 1957-1963 | 4 Spd | RWD V8 | Dual Coupling Hydramatic |
| Eldorado | 1964-1966 | 3 Spd | RWD V8 | TH400 |
| Eldorado | 1967-78 | 3 SPEED | FWD V8 | TH425 |
| Eldorado | 1979-81 | 3 SPEED | FWD V8 | TH325 |
| Eldorado | 1982-85 | 4 SPEED | FWD V8 | TH325-4L |
| Eldorado | 1986-90 | 4 SPEED | FWD V8 | TH440T4 |
| Eldorado | 1991-1993 | 4 SPEED | FWD 4.9L V8 | 4T60E |
| Eldorado | 1993-2003 | 4 Spd | FWD 4.6L V8 | 4T80E |