Model Applications
15 Subaru Model variations fitted with Transmission Type TY856UW9AA as standard, or available as a factory fitted option.
| TY856UW9AA | VAF | A | US | WRX STI | 309 PS | Jan. | '14 | – | Apr. | '15 |
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| TY856UW9AA | VAF | A | CA | WRX STI Wing Delete | 309 PS | Jan. | '14 | – | Apr. | '15 |
| TY856UW9AA | VAF | A | US | WRX STI Limited | 309 PS | Jan. | '14 | – | Apr. | '15 |
| TY856UW9AA | VAF | A | US | WRX STI Launch Edition | 309 PS | Jan. | '14 | – | Apr. | '14 |
| TY856UW9AA | VAF | A | CA | WRX STI | 309 PS | Jan. | '14 | – | Apr. | '15 |
| TY856UW9AA | VAF | A | CA | WRX STI Limited | 309 PS | Jan. | '14 | – | Apr. | '15 |
| TY856UW9AA | VAF | B | US | WRX STI | | Mar. | '15 | – | Mar. | '16 |
| TY856UW9AA | VAF | B | US | WRX STI Limited | | Apr. | '15 | – | Mar. | '16 |
| TY856UW9AA | VAF | B | CA | WRX STI | | Apr. | '15 | – | Mar. | '16 |
| TY856UW9AA | VAF | B | CA | WRX STI Limited | | Apr. | '15 | – | Mar. | '16 |
| TY856UW9AA | VAF | B | US | WRX STI Limited Wing Delete | | Apr. | '15 | – | Mar. | '16 |
| TY856UW9AA | VAF | B | CA | WRX STI Wing Delete | | Apr. | '15 | – | Mar. | '16 |
| TY856UW9AA | VAF | B | US | WRX STI Series.HyperBlue | | Jul. | '15 | – | Aug. | '15 |
| TY856UW9AA | VAF | B | CA | WRX STI Series.HyperBlue | | Feb. | '16 | – | Mar. | '16 |
| TY856UW9AA | VAF | C | CA | WRX STI Wing Delete | | Apr. | '16 | – | Mar. | '17 |
Plot GraphTransmission Specification
6-Speed Manual Transmission (6MT), fitted new to production cars from January 2014 to March 2017.
Main Transmission
| First Gear Ratio | 3. | 636 | :1 |
| Second Gear Ratio | 2. | 235 | :1 |
| Third Gear Ratio | 1. | 521 | :1 |
| Forth Gear Ratio | 1. | 137 | :1 |
| Fifth Gear Ratio | 0. | 971 | :1 |
| Sixth Gear Ratio | 0. | 756 | :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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| 245/ | 40 | R18 | 8.68 km/h(5.40 mph) | 14.13 km/h(8.78 mph) | 20.76 km/h(12.90 mph) | 27.77 km/h(17.25 mph) | 32.51 km/h(20.20 mph) | 41.76 km/h(25.95 mph) | … | −8.91 km/h(−5.53 mph) |
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‡ The Tyre Size shown is the OEM size for all Subarus fitted with Transmission Type TY856UW9AA. For other tyre sizes, or for vehicle speeds at different engine speeds, see the Vehicle Speed Calculator and Graph page.
Transmissions with Matching Ratios
| TY856UW1MA | Driver Control Centre Differential (DCCD) | Helical Front LSD |
| TY856WBDAA | Viscous Limited-Slip Centre Differential (VCD) | Open Front Differential |
| TY856WBDAD | Viscous Limited-Slip Centre Differential (VCD) | Open Front Differential |
| TY856WBEAA | Viscous Limited-Slip Centre Differential (VCD) | Open Front Differential |
| TY856WVDBA | Viscous Limited-Slip Centre Differential (VCD) | Open Front Differential |
| TY856WVDBD | Viscous Limited-Slip Centre Differential (VCD) | Open Front Differential |