1964 Chevelle
1965 Chevelle
1966 Chevelle
1967 Chevelle
1968 Chevelle
1969 Chevelle
1970 Chevelle
1971 Chevelle
1972 ChevelleChevelleWorld Decode Links
Manual Three-Speed Transmission Gear Ratios
The various manual 3-speed transmissions have different gear ratios depending on the year and use.
| Model Year | Description | 1st Gear | OD Locked In | 2nd Gear | OD Locked In | 3rd Gear | OD Locked In | Reverse |
| 1964 | Saginaw (Low Performance) Saginaw Saginaw with Overdrive |
2.94:1 2.58:1 2.94:1 |
2,058:1 |
1.68:1 1.48:1 1.68:1 |
1.176:1 |
1.00:1 1.00:1 1.00:1 |
03.700:1 |
2.94:1 2.56:1 3.33:1 |
| 1965 | Saginaw (Low Performance) Saginaw Muncie with Overdrive |
2.94:1 2.58:1 2.94:1 |
2.056:1 |
1.68:1 1.48:1 1.68:1 |
1.176:1 |
1.00:1 1.00:1 1.00:1 |
0.700:1 |
2.94:1 2.56:1 3.33:1 |
| 1966 | Saginaw (Low Performance) Saginaw Saginaw with Overdrive Borg-Warner Heavy Duty M13 |
2.85:1 2.54:1 2.85:1 2.41:1 |
1.995:1 |
1.68:1 1.56:1 1.68:1 1.57:1 |
1.176:1 |
1.00:1 1.00:1 1.00:1 1.00:1 |
0.700:1 |
2.95:1 2.41:1 2.95:1 2.41:1 |
| 1967 | Saginaw (Low Performance) Saginaw Saginaw with Overdrive Borg-Warner Heavy Duty M13 |
2.85:1 2.54:1 2.85:1 2.41:1 |
1.995:1 |
1.68:1 1.50:1 1.68:1 1.57:1 |
1.176:1 |
1.00:1 1.00:1 1.00:1 1.00:1 |
0.700:1 |
2.95:1 2.63:1 2.95:1 2.41:1 |
| 1968 | Saginaw (Low Performance) Saginaw Saginaw with Overdrive Borg-Warner Heavy Duty M13 |
2.85:1 2.54:1 2.85:1 2.41:1 |
1.995:1 |
1.68:1 1.50:1 1.68:1 1.57:1 |
1.176:1 |
1.00:1 1.00:1 1.00:1 1.00:1 |
0.700:1 |
2.95:1 2.63:1 2.95:1 2.86:1 |
| 1969 | Saginaw (Low Performance) Saginaw Heavy Duty Muncie MC1 |
2.85:1 2.54:1 3.03:1 |
1.68:1 1.50:1 1.75:1 |
1.00:1 1.00:1 1.00:1 |
2.95:1 2.63:1 3.02:1 |
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| 1970 | Saginaw (Low Performance) Saginaw Heavy Duty Muncie |
2.85:1 2.54:1 2.42:1 |
1.68:1 1.50:1 1.58:1 |
1.00:1 1.00:1 1.00:1 |
2.95:1 2.63:1 2.41:1 |
|||
| 1971 | Saginaw (Low Performance) Saginaw Heavy Duty Muncie(1) |
2.85:1 2.54:1 2.42:1 |
1.68:1 1.50:1 1.58:1 |
1.00:1 1.00:1 1.00:1 |
2.95:1 2.63:1 2.41:1 |
|||
| 1972 | Saginaw (Low Performance) Saginaw Heavy Duty Muncie(1) |
2.85:1 2.54:1 2.42:1 |
1.68:1 1.50:1 1.58:1 |
1.00:1 1.00:1 1.00:1 |
2.95:1 2.63:1 2.41:1 |
|||
| 1973 | Saginaw (Low Performance) Saginaw |
2.85:1 2.54:1 |
1.68:1 1.50:1 |
1.00:1 1.00:1 |
2.95:1 2.95:1 |
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| 1974 | Saginaw (Low Performance) Saginaw |
2.85:1 2.54:1 |
1.68:1 1.50:1 |
1.00:1 1.00:1 |
2.95:1 2.95:1 |
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| 1975 | Saginaw (Low Performance(3) Saginaw (Low Performance) |
3.11:1 2.85:1 |
1.84:1 1.68:1 |
1.00:1 1.00:1 |
3.22:1 2.95:1 |
(1) Only used in 1971-1972 and only with the LS3 402/300hp
engine.
(2) Overdrive Unit Casting Number
(3) Used only with the L22 250/105hp engine.
