Model Applications
Seven Subaru Model variations fitted with Transmission Type TY856WB1AA as standard, or available as a factory fitted option.
| TY856WB1AA | GDB | A | JP | Impreza WRX STi | 280 PS | Sep. | '00 | – | Jul. | '01 |
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| TY856WB1AA | GDB | A | JP | Impreza WRX STi S specification | 280 PS | Feb. | '01 | – | Jun. | '01 |
| TY856WB1AA | GDB | B | JP | Impreza WRX STi | 280 PS | Aug. | '01 | – | Sep. | '02 |
| TY856WB1AA | GDB | B | JP | Impreza WRX STi Prodrive Style | 280 PS | Oct. | '01 | – | Sep. | '02 |
| TY856WB1AA | GDB | B | JP | Impreza WRX STi Limited | 280 PS | Mar. | '02 | – | Sep. | '02 |
| TY856WB1AA | GGB | A | JP | Impreza Sports Wagon STi | 280 PS | Sep. | '00 | – | May | '01 |
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| TY856WB1AA | GGB | B | JP | Impreza Sports Wagon STi | 280 PS | Jul. | '01 | – | Sep. | '02 |
Plot GraphTransmission Specification
6-Speed Manual Transmission (6MT), fitted new to production cars from September 2000 to September 2002.
Main Transmission
| First Gear Ratio | 3. | 636 | :1 |
| Second Gear Ratio | 2. | 375 | :1 |
| Third Gear Ratio | 1. | 761 | :1 |
| Forth Gear Ratio | 1. | 346 | :1 |
| Fifth Gear Ratio | 1. | 062 | :1 |
| Sixth Gear Ratio | 0. | 842 | :1 |
| Seventh Gear Ratio | … |
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| Reverse Gear Ratio | 3. | 545 | :1 |
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| High Range Ratio | … |
| Low Range Ratio | … |
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Drive System
Full-time four wheel drive (VCD)
Bevel gear type centre differential with viscous coupling slip limiter. |
| Rear Drive Transfer Ratio | 1.000:1 |
Front Differential
| Type | Open |
| Ring Gear Teeth | 39 |
| Pinion Gear Teeth | 10 |
| Final Drive Ratio | 3.900:1 |
Vehicle Speed at 1,000 rpm
| Tyre Size‡ | First | Second | Third | Forth | Fifth | Sixth | Seventh | Reverse |
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| 215/ | 45 | R17 | 8.31 km/h(5.16 mph) | 12.73 km/h(7.91 mph) | 17.16 km/h(10.66 mph) | 22.45 km/h(13.95 mph) | 28.46 km/h(17.68 mph) | 35.89 km/h(22.30 mph) | … | −8.53 km/h(−5.30 mph) |
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| 225/ | 45 | R17 | 8.43 km/h(5.24 mph) | 12.91 km/h(8.02 mph) | 17.41 km/h(10.82 mph) | 22.78 km/h(14.15 mph) | 28.87 km/h(17.94 mph) | 36.41 km/h(22.62 mph) | … | −8.65 km/h(−5.37 mph) |
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‡ The Tyre Sizes shown are the various OEM sizes for Subarus fitted with Transmission Type TY856WB1AA. For other tyre sizes, or for vehicle speeds at different engine speeds, see the Vehicle Speed Calculator and Graph page.
Transmissions with Matching Ratios
| TY856WB1BA | Driver Control Centre Differential (DCCD) | Suretrac Front LSD |
| TY856WB1CA | Viscous Limited-Slip Centre Differential (VCD) | Suretrac Front LSD |
| TY856WB2DA | Driver Control Centre Differential (DCCD) | Suretrac Front LSD |
| TY856WB2GA | Viscous Limited-Slip Centre Differential (VCD) | Suretrac Front LSD |
| TY856WB3AA | Viscous Limited-Slip Centre Differential (VCD) | Open Front Differential |
| TY856WB3CB | Viscous Limited-Slip Centre Differential (VCD) | Suretrac Front LSD |
| TY856WB3JA | Driver Control Centre Differential (DCCD) | Suretrac Front LSD |
| TY856WB3KA | Driver Control Centre Differential (DCCD) | Suretrac Front LSD |
| TY856WB4AA | Viscous Limited-Slip Centre Differential (VCD) | Open Front Differential |
| TY856WB4JA | Driver Control Centre Differential (DCCD) | Suretrac Front LSD |
| TY856WB4KA | Driver Control Centre Differential (DCCD) | Suretrac Front LSD |
| TY856WB6CA | Viscous Limited-Slip Centre Differential (VCD) | Suretrac Front LSD |
| TY856WB6JA | Driver Control Centre Differential (DCCD) | Helical Front LSD |
| TY856WB6KA | Driver Control Centre Differential (DCCD) | Helical Front LSD |
| TY856WX3CA | Viscous Limited-Slip Centre Differential (VCD) | Suretrac Front LSD |
| TY856WX4CA | Viscous Limited-Slip Centre Differential (VCD) | Suretrac Front LSD |