SOURCE: http://www.gt40club.clara.net/kvabuild.htm
Renault five speed manual transaxle gear and differential ratios
| Model | Part No. | Ist | 2nd | 3rd | 4th | 5th | Rev | Diff |
| 20 | 369.00 | 3.36 | 2.06 | 1.38 | 1.06 | 0.82 | 3.55 | 4.11 |
| 369.05 | 3.36 | 2.06 | 1.38 | 1.06 | 0.82 | 3.55 | 4.11 | |
| 20TX | 369 | 3.36 | 2.06 | 1.38 | 1.06 | 0.87 | 3.55 | 3.778 |
| 20 LS/TS | 369 | 3.82 | 2.18 | 1.41 | 1.03 | 0.86 | 3.55 | 3.778 |
| 21 Turbo | UN1-013 | 3.36 | 2.05 | 1.38 | 1.03 | 0.82 | 3.54 | 3.44 |
| 25 GTX | UN 1-03 | 3.36 | 2.05 | 1.38 | 1.04 | 0.82 | 3.55 | 3.89 |
| 25 V6 | UN 1-04 | 3.36 | 2.05 | 1.38 | 0.96 | 0.76 | 3.55 | 3.89 |
| Alpine GTA | UN1-05 | 3.36 | 2.05 | 1.38 | 1.04 | 0.82 | 3.55 | 3.44 |
| 25 Blindee | UN 1-06 | 3.36 | 2.05 | 1.38 | 0.96 | 0.76 | 3.55 | 4.11 |
| Alpine Turbo | UN1-07 | 3.36 | 2.05 | 1.38 | 0.96 | 0.76 | 3.55 | 3.44 |
| 25 V6 Turbo | UN1-08 | 3.36 | 2.05 | 1.38 | 0.96 | 0.76 | 3.55 | 3.778 |
| 30 TX | 369-01/06/017 | 3.36 | 2.05 | 1.38 | 1.06 | 0.82 | 3.55 | 3.89 |
| 30 TS | 369-01/06/014 | 3.36 | 2.05 | 1.38 | 1.06 | 0.82 | 3.55 | 3.89 |