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Kartboy Rear Diff/Carrier Wedge Lock Bushings - 2015-2021 WRX/STI


The Kartboy Rear Differential Carrier Wedge Lock System has been designed to provide more reinforcement to the rear differential which adds a better feel, and more stability to the rear differential under harsh driving conditions. This kit includes 4 machined aluminum inserts to lock in the rear differential bushing inserts, as well as 4 Carrier inserts, all in a black finish.

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