Energy Suspension Red Rear Differential Mount Bushing Set Subaru WRX / STI 2008-2012 | 19.1105R

Product Fitment:

2008-2012 Subaru WRX

2008-2012 Subaru STI

The Energy Suspension 19.1105 Differential Mount Bushing Set replaces the original rubber differential mount bushings with durable Hyper-Flex™ polyurethane components, giving your rear drivetrain and suspension a firmer, more stable connection to the chassis. Over time, factory rubber bushings can sag or deteriorate, allowing rear differential movement under load — causing clunking, axle hop, unpredictable rear-end behavior, and reduced handling precision.

Upgrading to polyurethane tightens the mount, reduces unwanted differential movement during acceleration, braking, and cornering, and improves power transfer efficiency and chassis stability. The firmer mount also helps maintain proper alignment under load, resulting in more predictable handling, improved traction, and a smoother driving experience.

This kit is ideal for older vehicles or any Subaru with worn stock bushings. Hyper-Flex polyurethane resists oil, road grime, and environmental degradation, offering a long service life and consistent performance where rubber bushings would soften or fail.

In the Box:

• 2 x Differential Bushings – Rear Position (01P01350)

• 2 x Sleeves – 1.00" x 0.563" x 16.50" (15.10.673.39)

• 2 x Differential Bushings – Front Position (01P01351)

• 2 x Sleeves – 0.875" x 0.500" x 2.230" (15.10.225.39)

• 1 x Installation Instructions Sheet (17P17691)

Position: Rear differential / carrier mount
Material: Hyper-Flex™ polyurethane
Benefits:

• Stabilizes rear differential mount

• Reduces axle hop and rear-end movement under load

• Improves drivetrain stability and power delivery

• Maintains alignment under stress

• Enhances traction, handling consistency, and rear-end behavior

• Lasts significantly longer than OEM rubber bushings