Automatic Transmission Swap Specifications
Automatic transmission swap specifications are listed below. The specs are shown by transmision name. This information is for reference only and cannot be guaranteed accurate. If you need help finding the right crossmember for your swap project, visit Find the right Crossmember to support your transmission for additional information. Manual transmission specs are also available.
Automatic Transmission Swap Specifications and Technical Information.
| Transmission | Overall Length | Bellhousing to Mount | Spline | First | Second | Third | Fourth |
|---|---|---|---|---|---|---|---|
| Powerglide - Short | 24.25 | 19.50 (20.562, TCI) | 27 | 1.76 or 1.82 | 1.00 | ||
| Powerglide - Long | 27.50 (27.75) | 20.50 (20.562, TCI) | 27 | 1.76 or 1.82 | 1.00 | ||
| T-200 & T-200C | 27.625 | 20.125 | |||||
| T250 | 27.625 | 20.375 | |||||
| T350 - Short | 27.625 | 20.375 | 27 | 2.52 | 1.52 | 1.00 | |
| T350 - Long | 30.625 | 20.375 | 27 | 2.52 | 1.52 | 1.00 | |
| T400 - Short | 28.250 | 26.750 (26.938, TCI) | 32 | 2.48 | 1.48 | 1.00 | |
| T400 - Long | 34.000 | 28.000 | 32 | 2.48 | 1.48 | 1.00 | |
| 200R4 | 27.750 | 26.875 (27.000, TCI) | 27 | 2.74 | 1.57 | 1.00 | .67 |
| 700R4 | 27.750 (30.000) | 22.375 (22.500, TCI) | 27 | 3.06 | 1.83 | 1.00 | .70 |
| 4L60 | 27.750 (30.000) | 22.375 (22.500, TCI) | 27 | ||||
| 4L60E | 27.750 (30.000) | 22.375 (23.594, TCI) | 27 | 3.06 | 1.83 | 1.00 | .70 |
| 4L65E (LS1 type removeable bellhousing) | 23.600 | ||||||
| 4L6E (Permanent Bellhousing) | 23.200 | ||||||
| 4L70E (LS1 type removable bellhousing) | 23.600 | ||||||
| 4L70E (Permanent Bellhousing) | 23.200 | ||||||
| 4L80E | 31.500 (31.000) | 30.375 (30.375, TCI) | 32 | 2.48 | 1.48 | 1.00 | .75 |
| C-4 Pan Fill | 24.312 | 16.750 | |||||
| C-4 Case Fill | 30.593 | 20.500 | |||||
| C-6 FE Big Block | 33.500 | 22.375 | |||||
| C-6 Big Block | 33.500 | 22.375 | |||||
| C-6 Small Block | 33.500 | 22.375 | |||||
| AOD Small Block | 30.375 | 22.312 | |||||
| AODE Small Block | 31.187 | 23.312 | |||||
