ISR Performance Driveshaft

1989–1998 Nissan 240SX / KA/SR 5-Speed Non-ABS Aluminum Shaft

Part #: IS-DS-KASRS13-A

Overview

The ISR Performance Driveshaft for the Nissan 240SX is a high-quality, one-piece aluminum driveshaft designed specifically for the S13 and S14 chassis equipped with KA or SR engines and a 5-speed manual transmission. This upgrade is ideal for enthusiasts seeking improved responsiveness and a more direct power transfer from the engine to the wheels. By replacing the factory two-piece driveshaft, this component reduces drivetrain slop and eliminates the rubber carrier bearing that can cause movement and flex during acceleration.

Constructed with performance in mind, this driveshaft enhances the overall driving experience by providing a more solid and responsive feel, especially during spirited driving or track use. It is engineered to support the demands of modified or stock vehicles alike, offering a reliable solution that improves drivetrain rigidity and reduces vibrations associated with factory components.

Key Features

Designed for performance and durability, the ISR Performance Driveshaft offers several key benefits:

• Constructed from lightweight, high-strength aluminum to reduce rotational mass and improve acceleration response.
• One-piece design eliminates the factory two-piece shaft and rubber carrier bearing, resulting in a more direct and responsive drivetrain.
• Built using Dana/Spicer solid high-performance u-joints for enhanced durability and smooth operation under high torque conditions.
• Precision CNC-machined flange connections ensure a perfect fit and easy installation.
• Reduces drivetrain flex and vibrations, contributing to better handling and a more connected driving feel.
• Compatible with Nissan 240SX models from 1989 to 1998, including both S13 and S14 chassis with KA or SR engines.

Construction & Design

The ISR Performance Driveshaft is crafted from high-grade aluminum, chosen for its excellent strength-to-weight ratio. The one-piece construction not only simplifies installation but also enhances overall drivetrain rigidity. The driveshaft features Dana/Spicer solid high-performance u-joints, which are known for their durability and ability to withstand high torque loads. The CNC-machined flange connections ensure precise fitment, minimizing vibrations and ensuring reliable operation over time. This design effectively removes the rubber carrier bearing, which can cause movement and noise during acceleration, leading to a more stable and responsive driving experience.

Installation & Fitment

The ISR Performance Driveshaft is designed as a bolt-on upgrade that directly replaces the factory two-piece shaft. No cutting, drilling, or modifications are required for installation on compatible Nissan 240SX models from 1989 to 1998 with KA or SR engines and a 5-speed transmission. The process involves removing the stock driveshaft and installing this one-piece aluminum unit using the existing flange connections. Basic mechanical skills and standard hand tools are sufficient for installation. The driveshaft's precise fitment ensures a secure and stable connection, providing a significant upgrade in drivetrain responsiveness.

• Direct bolt-on replacement for factory two-piece driveshaft
• No cutting, drilling, or tuning required
• Compatible with Nissan 240SX S13 and S14 models (1989–1998) with KA or SR engines and 5-speed transmission

What's Included

• One-piece aluminum driveshaft
• High-performance Dana/Spicer u-joints
• All necessary hardware and flange connections

Ideal For

• 240SX owners looking to improve drivetrain responsiveness
• Enthusiasts seeking a lightweight, durable upgrade for street or track use
• Performance tuners aiming to reduce drivetrain flex and vibrations