The MTX-IV is a beefed-up version built by Mazda and introduced in 1989 for the Taurus SHO. It was also used in Tempo/Topaz models equipped with the Vulcan V6. Installing this transaxle into a V6 Tempo requires the use of a Tempo-specific flywheel, clutch, pressure plate and CV axles. This transaxle has also been used in the aftermarket to convert a 3.0L Vulcan-powered Taurus to a manual, something which was not offered from the factory.
Gear ratios (Vulcan Tempo/Topaz):
| 1 | 2 | 3 | 4 | 5 | R | Final drive |
|---|---|---|---|---|---|---|
| 3.60 | 2.12 | 1.39 | 1.02 | 0.76 | 3.62 | 3.52 |
Gear ratios (Taurus SHO):
| 1 | 2 | 3 | 4 | 5 | R | Final drive |
|---|---|---|---|---|---|---|
| 3.21 | 2.09 | 1.38 | 1.02 | 0.74† | 3.42 | 3.74† |
† - The actual 5th gear ratio is 1.02:1 (same as 4th gear), but it runs through a different final drive gear from gears 1-4 and reverse, with a ratio of 2.73:1, thus giving it an effective gear ratio of 0.74:1, if one assumes that it has the same final drive ratio as the rest of the gears.
Read more about this topic: Ford MTX Transmission