Description
SPL Parts 89-98 Nissan 240SX (S13/S14) Rear Knuckle Monoball Bushings is a chassis-specific suspension upgrade engineered for drivers who want more precise geometry control from 89-98 Nissan 240SX (S13/S14) Rear. SPL Parts develops American-made suspension solutions for drivers who need more alignment range, less unwanted compliance, and more consistent chassis behavior than factory hardware typically provides.
These knuckle-mounted spherical or low-compliance bushings replace soft rubber interfaces at critical suspension pivots, reducing the amount the upright can deflect relative to the control arms. More accurate pivot control helps preserve commanded camber and toe under load, improving tire contact-patch consistency, braking stability, and response during rapid direction changes.
Why it matters: On this application, the goal is to keep the tire and upright closer to the intended alignment as loads rise, giving the driver a more repeatable platform for braking, turn-in, mid-corner balance, and power application. They are a strong complement to adjustable arms because the alignment settings are less likely to be masked by elastic movement at the knuckle.
For best results, set the final geometry around the vehicle's tire, ride height, and intended street/track use rather than relying on generic factory targets.