The gear ratios in TREMEC manual 5 and 6 speed transmissions to give customers maximum flexibility when paired with a wide array of engines. There are even are optional gear sets for the TKX 5 speed and Magnum 6 speed transmissions, providing even more optimization possibilities for car builders to better match the ratios for their vehicle use and engine power curve.
This article lists all of the gear ratios available for all TREMEC aftermarket transmissions, making it easy for you to search and compare what might work best in your application.
You can use this guide with the TREMEC Gear Ratio Calculator to help with choosing your diff ratio to keep your engine in its powerband for maximum performance in whatever driving scenario you’re planning on. And if you’re looking for answers to physical fitment questions, check out our blog covering TREMEC aftermarket manual transmission dimensions.
T5 5 Speed
| Style | Input Spline | 1st | 2nd | 3rd | 4th | 5th | Reverse |
| Ford | 10 | 2.95 | 1.94 | 1.34 | 1 | 0.63 | 2.76 |
TKX 5 Speed
| Style | Input Spline | 1st | 2nd | 3rd | 4th | 5th | Reverse |
| Ford | 10 | 3.27 | 1.98 | 1.34 | 1.00 | 0.72 | 3.00 |
| Ford | 26 | 2.87 | 1.89 | 1.28 | 1.00 | 0.81 | 2.56 |
| Ford | 26 | 2.87 | 1.89 | 1.28 | 1.00 | 0.68 | 2.56 |
| Ford | 26 | 3.27 | 1.98 | 1.34 | 1.00 | 0.72 | 3.00 |
| GM | 26 | 3.27 | 1.98 | 1.34 | 1.00 | 0.72 | 3.00 |
| GM | 26 | 2.87 | 1.89 | 1.28 | 1.00 | 0.81 | 2.56 |
| GM | 26 | 2.87 | 1.89 | 1.28 | 1.00 | 0.68 | 2.56 |
T56 Magnum
| Style | Release Type | Input Spline | 1st | 2nd | 3rd | 4th | 5th | 6th | Reverse |
| GM | Hydraulic | 26 | 2.66 | 1.78 | 1.30 | 1.00 | 0.80 | 0.63 | 2.90 |
| GM | Hydraulic | 26 | 2.97 | 2.10 | 1.46 | 1.00 | 0.80 | 0.63 | 2.90 |
| GM | Hydraulic | 26 | 2.97 | 2.10 | 1.46 | 1.00 | 0.74 | 0.50 | 2.90 |
| Ford | Mechanical | 26 | 2.66 | 1.78 | 1.30 | 1.00 | 0.80 | 0.63 | 2.90 |
| Ford | Mechanical | 26 | 2.97 | 2.10 | 1.46 | 1.00 | 0.80 | 0.63 | 2.90 |
| Ford | Mechanical | 26 | 2.97 | 2.10 | 1.46 | 1.00 | 0.74 | 0.50 | 2.90 |
T56 Magnum-F
| Style | Release Type | Input Spline | 1st | 2nd | 3rd | 4th | 5th | 6th | Reverse |
| GM | Hydraulic | 26 | 2.66 | 1.78 | 1.30 | 1.00 | 0.80 | 0.63 | 2.90 |
| GM | Hydraulic | 26 | 2.97 | 2.10 | 1.46 | 1.00 | 0.80 | 0.63 | 2.90 |
| GM | Hydraulic | 26 | 2.97 | 2.10 | 1.46 | 1.00 | 0.74 | 0.50 | 2.90 |
T56 Magnum-XL
| Style | Release Type | Input Spline | 1st | 2nd | 3rd | 4th | 5th | 6th | Reverse |
| Non-specific | Hydraulic | 26 | 2.66 | 1.78 | 1.30 | 1.00 | 0.80 | 0.63 | 2.90 |
| Non-specific | Hydraulic | 26 | 2.97 | 2.10 | 1.46 | 1.00 | 0.80 | 0.63 | 2.90 |
| 05-up Mustang | Hydraulic | 26 | 2.66 | 1.78 | 1.30 | 1.00 | 0.80 | 0.63 | 2.90 |
| 05-up Mustang | Hydraulic | 26 | 2.97 | 2.10 | 1.46 | 1.00 | 0.80 | 0.63 | 2.90 |