OS Giken Nissan 240Z S30 (R180 115mm Ring Gear ID) Super Lock LSD

If you're looking to put more power down through your 1970-1973 Nissan 240Z, especially when exiting corners or launching from a stop, a limited-slip differential (LSD) is a crucial upgrade. This OS Giken Super Lock LSD is specifically designed for the R180 differential with a 115mm ring gear ID, ensuring a precise fit for your S30 chassis. It replaces your factory open differential, allowing both rear wheels to receive torque simultaneously, dramatically improving traction and reducing wheelspin.

OS Giken is well-known for its robust and high-performance drivetrain components, and the Super Lock LSD is a testament to that. It utilizes an advanced cone-type clutch system that offers a very high locking factor, meaning it can send nearly 100% of the engine's torque to the wheel with the most grip. This design also allows for smooth engagement during normal driving, so you don't have to deal with excessive chatter or noise. The internal components are made from strong materials, built to handle the stresses of spirited driving and track use. Installation involves rebuilding the R180 differential housing, so it's a job that requires specialized tools and knowledge, but the result is a significant improvement in your car's ability to put power to the ground.

This unit is designed to work with the R180 differential found in your 240Z, specifically models with the 115mm ring gear. It's important to confirm your differential size before ordering. While this LSD greatly enhances traction, it's always a good idea to ensure your axles and other drivetrain components are in good condition to handle the increased load. OS Giken LSDs are a popular choice for enthusiasts looking for a reliable and effective way to improve their classic Z car's performance.