4.44 Limited-Slip Rear Differential and Axles

The STI TY757VBABB is a 5-speed manual transmission package engineered for performance-oriented Subaru enthusiasts. The unit features a 4.44 final drive ratio, paired with a matching 4.44 limited-slip rear differential (LSD) to improve traction and power distribution, making it a capable upgrade for both street and track-focused builds. This complete drivetrain solution includes the transmission, 4.44 LSD, and four-corner axles, providing a ready-to-install package for compatible Subaru models. It is rated to handle up to 280 horsepower, offering a durable alternative for those looking to optimize their performance setup. The unit is non-DCCD, emphasizing a direct and mechanical driving experience. Compatibility includes 2002-2012 Subaru WRX and 2003-2008 Forester XT models. As a critical installation note, if your current vehicle transmission utilizes a 3.9 final drive ratio, you must install the provided 4.44 rear differential in conjunction with this transmission to ensure safe and correct operation. Proper fitment and compatibility must be verified by the buyer prior to installation to ensure all drivetrain components align correctly.