SPL Parts 03-08 Nissan 350Z Rear Knuckle Monoball Bushings

If you're looking to get the most out of your 2003-2009 Nissan 350Z or 2003-2007 Infiniti G35 Coupe/Sedan on the track or during spirited driving, replacing the stock rubber rear knuckle bushings is a smart move. These SPL Parts Rear Knuckle Monoball Bushings (RKB) swap out the flexible factory rubber with low-friction spherical bearings. This change is crucial because it eliminates the flex and bind that can happen with rubber bushings under load, keeping your suspension geometry consistent and predictable.

What this means for your car is a notable improvement in handling and feedback. You'll feel a more direct connection to the road, and the suspension will react more precisely to your inputs. The bearings themselves use FK Racing Bearings, which feature a self-lubricating Teflon liner designed for long life and consistent performance. The bearing shells are precisely machined from T6061 aluminum to ensure a perfect fit within the knuckle. This kit is sold as a complete set for one vehicle and is proudly made in the USA.

When you're installing these, remember that they replace the factory rubber bushings. This is a job that requires some specialized tools and knowledge to press out the old bushings and install the new monoball units correctly. Because these are high-precision components, it's important to follow the manufacturer's installation instructions carefully to ensure optimal performance and longevity.