Model Applications
Two Subaru Model variations fitted with Transmission Type TY856WB8KD as standard, or available as a factory fitted option.
| TY856WB8KD | GDB | G | JP | Impreza WRX STi | 280 PS | Jan. | '07 | – | Apr. | '07 |
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| TY856WB8KD | GDB | G | JP | Impreza WRX STi A-Line | 280 PS | Jan. | '07 | – | Apr. | '07 |
Plot GraphTransmission Specification
6-Speed Manual Transmission (6MT), fitted new to production cars from January 2007 to April 2007.
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 with Driver Control Centre Differential (DCCD)
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| Rear Drive Transfer Ratio | 1.100:1 |
Front Differential
| Type | Helical Limited Slip |
| 38410AA100 |
| 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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| 235/ | 45 | R17 | 8.55 km/h(5.31 mph) | 13.09 km/h(8.13 mph) | 17.66 km/h(10.97 mph) | 23.10 km/h(14.35 mph) | 29.28 km/h(18.19 mph) | 36.93 km/h(22.95 mph) | … | −8.77 km/h(−5.45 mph) |
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‡ The Tyre Size shown is the OEM size for all Subarus fitted with Transmission Type TY856WB8KD. For other tyre sizes, or for vehicle speeds at different engine speeds, see the Vehicle Speed Calculator and Graph page.
Transmissions with Matching Ratios
| TY856UB1KA | Driver Control Centre Differential (DCCD) | Helical Front LSD |
| TY856UB6AA | Driver Control Centre Differential (DCCD) | Helical Front LSD |
| TY856UB9AA | Driver Control Centre Differential (DCCD) | Helical Front LSD |
| TY856WB7JA | Driver Control Centre Differential (DCCD) | Helical Front LSD |
| TY856WB7KA | Driver Control Centre Differential (DCCD) | Helical Front LSD |
| TY856WB8JA | Driver Control Centre Differential (DCCD) | Helical Front LSD |
| TY856WB8KA | Driver Control Centre Differential (DCCD) | Helical Front LSD |