GKTech Nissan S13 240sx/R32 Skyline Polyurethane rear subframe conversion bushings

The GKTech Polyurethane Rear Subframe Conversion Bushings are designed to allow the installation of an S14 or S15 rear subframe into an S13 240SX or R32 Skyline chassis. Upgrading to the later-model subframe provides improved suspension geometry and access to modern arm designs, but the subframe mounting points differ. This bushing set corrects the height difference, allowing for a direct bolt-in install without cutting or welding.

Made from high-quality polyurethane, these bushings also offer a stiffer alternative to factory rubber, reducing flex in the rear and delivering improved handling response without the harshness of solid mounts.

Key Features:

• Enables Subframe Swap: Allows fitment of S14/S15 subframe into S13 or R32 chassis

• Polyurethane Construction: Reduces flex while maintaining some compliance for comfort

• Direct Bolt-In: Corrects OEM height differences—no cutting, welding, or guesswork required

• Improved Handling: Tightens up rear end for better response during cornering or drifting

Specifications:

• Material: High-grade polyurethane

• Fitment Type: Press-in replacement

• Install Time: ~1–2 hours with access to press or removal tools

Compatibility:

• Nissan S13 240SX / Silvia

• Nissan R32 Skyline (RWD only)
  For use when installing an S14 or S15 rear subframe.

What’s Included:

• (4) Polyurethane conversion bushings

• (1) Set of installation instructions

Notes:

• Designed for S14/S15 subframe swaps only—will not work with S13 subframe

• Professional installation recommended for best fitment and safety

• May raise NVH slightly compared to factory rubber bushings

Upgrade your chassis the right way with the GKTech Polyurethane Subframe Conversion Bushings—built to bridge generations with precision, comfort, and control.