Kartboy Rear Diff Outrigger Bushings - Hard Subaru WRX / STI 2002-2007

Part #: KB-003-Diff-H. These Kartboy rear differential outrigger bushings, made in the USA from durable urethane, are designed for the 2002 - 2007 WRX and STi. They eliminate excessive play from soft stock rear differential bushings under hard acceleration and throttle changes. Installation also gets rid of most, if not all, of the infamous Subaru 'clunk'.

Using these Kartboy rear differential outrigger bushings is easy. Just replace your old, soft stock bushings with these hard ones. When installing, make sure to align them properly to get the best performance. As for maintenance, there's not much you need to do. But it's a good idea to check them every few months for any signs of wear or damage. If you notice any issues, replace them right away to keep your car running smoothly.