Description
SPL Parts 89-94 Nissan 240SX (S13) Solid Differential Mount Bushings is a chassis-specific suspension upgrade engineered for drivers who want more precise geometry control from 89-94 Nissan 240SX (S13) Solid. SPL Parts focuses on competition-grade suspension and alignment hardware, combining in-house development with U.S.-sourced materials and precision manufacturing for demanding street and track applications.
These rigid differential-mount bushings reduce drivetrain movement by replacing the compliance of the factory mounting system. Limiting differential rotation improves driveline response during throttle application and lift, helping the rear suspension receive torque inputs more consistently instead of absorbing part of the load through bushing wind-up.
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. Because solid mounting transmits more gear and driveline vibration into the chassis, it is primarily aimed at performance builds where response and durability take priority over NVH isolation.
When combined with quality dampers and tires, precise suspension links help make chassis tuning changes easier to feel, measure, and reproduce.