ISR Performance Driveshaft - RB25 Swap S14 Non ABS - Aluminum

Our one-piece aluminum driveshaft for the S14 240SX RB25DET swap running the factory RB25DET 5-speed transmission and a Non-ABS differential. Aluminum construction keeps rotational mass low for the kind of response that matters most in low-mass swap builds.

What It Does

Replaces the factory 2-piece driveshaft with an ISR one-piece aluminum shaft. Eliminating the rubber carrier bearing in the middle gets rid of the vague feel under acceleration that's baked into the stock 2-piece design. Aluminum drops rotational mass compared to a steel shaft, which translates to quicker engine response. Built using Dana and Spicer solid high-performance u-joints for serious durability.

Fitment

Fits the Nissan 240SX S14 chassis with the following swap configuration:

• Nissan RB25DET engine
• Factory RB25DET 5-speed transmission (RB-native, no adapter plate required)
• Non-ABS differential
• ISR Performance swap mounts and swap components throughout

Critical: Driveshaft length is determined by your differential, not by whether your car came with ABS from the factory. Some S-chassis owners swap in non-ABS diffs (or vice versa); confirm which differential is actually in your car before ordering. This shaft is only guaranteed to fit when using ISR Performance swap components.

Lead Time

Built to order. Approximately 1 week lead time.

Product Details

Brand: ISR Performance

Part Number: IS-DS-RBS14-A

Type: One-Piece Driveshaft (aluminum)

Vehicle Fitment: Nissan 240SX S14, RB25DET swap, factory 5-speed transmission, Non-ABS differential

Engine: Nissan RB25DET

Transmission: Factory RB25DET 5-speed (RB-native, no adapter)

Material: Aluminum

U-Joints: Dana/Spicer solid high-performance

Differential Requirement: Non-ABS (confirm your actual diff before ordering)

Lead Time: Built to order, ~1 week

Sold: Individually

Related: IS-DS-RBS14-S (same fit, steel construction); IS-DS-RBS14ABS-A (S14 ABS aluminum); IS-DS-RBS14ABS-S (S14 ABS steel); IS-DS-RBS13-A (S13 non-ABS aluminum); IS-DS-RBS13-S (S13 non-ABS steel)

Legality: Off-road and competition use only