I have the Passon 4-speed overdrive Hemi trans.
| Ratios, Stock vs. Passon OD | ||
| Gear | Stock | Overdrive |
| First | 2.65 | 2.66 |
| Second | 1.93 | 1.59 |
| Third | 1.39 | 1.00 |
| Fourth | 1.00 | 0.80 |
| Effective Rearend Ratios | |
| Rearend Ratio w/ 1.00 Fourth | Effective Ratio w/ 0.08 overdrive |
| 3.23 | 2.58 |
| 3.55 | 2.84 |
| 3.91 | 3.13 |
| 4.10 | 3.28 |
| 4.56 | 3.65 |