Whiteline Rear Differential Mount Inserts Subaru WRX 08-23 / STI 08-21 / Forester XT 09-18 | KDT903

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SKU: whlKDT903
Availability: 66 In Stock Learn more
Type: Drivetrain Mounts
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Regular Price: $70.88 - Instant discount: $17.72 = $53.16

Subtotal: $53.16

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Fitment Information:

2008-2023 Subaru WRX

2008-2021 Subaru STI

2009-2018 Subaru Forester XT

2010-2012 Subaru Legacy GT


The Whiteline Flat Out rear differential mount insert or "positive power" kit for the Subaru WRX and STI is an easy to install solution to get rid of the "clunk". Have you ever experienced that terrible clunking sound during shifts? That is your rear differential moving around! The Whiteline rear differential mount insert kit will get ride of that annoying sound and get more power to the ground. The rear diff mounts in factory form allow the rear diff to move around a lot. The clunk is most noticeable during acceleration from a stand still and shifting gears quickly. The Whiteline rear diff mount kit will provide the driver with a precise gear shift and predictable clutch engagement. This kit installs very quickly and easily with simple hand tools. Whiteline includes all necessary hardware for installation as well as a grease packet and instructions.

California Prop 65 Warning:
 Operating, servicing and maintaining a passenger vehicle or off-highway motor vehicle can expose you to chemicals including engine exhaust, carbon monoxide, phthalates, and lead, which are known to the State of California to cause cancer and birth defects or other reproductive harm. To minimize exposure, avoid breathing exhaust, do not idle the engine except as necessary, service your vehicle in a well-ventilated area and wear gloves or wash your hands frequently when servicing your vehicle. For more information go to www.p65warnings.ca.gov.