6-Speed Manual Transmission with 3.90 Final Drive

The Subaru OEM TY856WB1AA is a 6-speed manual transmission designed for AWD applications, specifically sought after for its Non-DCCD (Driver Controlled Centre Differential) option. This JDM (Japanese Domestic Market) transmission is a key component for upgrading or swapping drivelines. This particular transmission, the TY856WB1AA, is frequently offered as part of a comprehensive 6-speed swap package. These packages typically include essential components such as all four Brembo calipers, R180 hubs, STI axles, an R180 driveshaft, and an R180 LSD (Limited Slip Differential). The stated final drive ratio is 3.90. This unit is specifically noted for its compatibility as a complete driveline swap for Subaru WRX models manufactured between 2002 and 2007. It is derived from JDM Impreza WRX STI vehicles, often from the V7 generation (2002-2003 models are frequently cited). While this transmission offers significant upgrades, it's important to note that it is a used JDM component and may have specific installation requirements or considerations depending on the donor vehicle and the target vehicle's existing setup. The product is backed by a 30-day warranty.