W57
The W57 is sometimes designated as a "close-ratio transmission"; however in its stock form it does not meet all the criteria for a Close-ratio box.
The ratio shift was accomplished by taking the W55 base ratios and changing the input shaft to intermediate shaft ratio by 7.9%, thus shifting 1,2,3 ratios higher by that amount (4th is direct 1:1).
Unlike in the W58 the 5th/overdrive gear set was changed to create a smaller rpm drop between 4th & 5th gears so as to remain close to the overdrive ratio seen in the other boxes.
The rest of the transmission remains unchanged.
Ratios:
- First Gear: 3.285:1
- Second Gear: 1.894:1
- Third Gear: 1.275:1
- Fourth Gear: 1.00:1
- Fifth Gear: 0.861:1
- Reverse: -3.768:1
Applications:
- 1983-1986 Toyota Supra MK 2 in certain non-US markets.
- 1986 Toyota Crown
- 1986 Toyota Cressida
- 1982-1985 Toyota Celica (21R)
Read more about this topic: Toyota W Transmission