GKTech Nissan Z32/GT-R alloy rear knuckle spherical strut bush upgrade (PAIR)

The GKTech Alloy Rear Knuckle Spherical Strut Bush Upgrade replaces the factory rubber bushings at the top of the rear knuckle, where the rear shock or coilover mounts on Z32 300ZX and R32/R33/R34 GT-Rs equipped with OEM alloy knuckles. Over time, the stock rubber bushings allow for unwanted flex, leading to vague suspension feel and compromised alignment under load.

This upgrade uses PTFE-lined spherical bearings housed in CNC-machined steel casings to provide a direct, deflection-free connection between the shock and knuckle. It's a press-in replacement that increases handling precision, rear suspension feedback, and durability, especially under track or drift conditions.

Key Features:

• Zero-Deflection Design: Replaces soft OEM rubber with precision spherical bearings

• Enhanced Suspension Feedback: Sharpens rear response under cornering and acceleration

• Motorsport-Grade Build: PTFE-lined bearing in a CNC-machined steel housing

• Press-In Fitment: Compatible with factory alloy rear knuckles

Specifications:

• Material: Steel housing with PTFE-lined spherical bearing

• Fitment Type: Press-in

• Install Time: ~1–2 hours (press required)

Compatibility:

• Nissan Z32 300ZX (with alloy rear knuckles only)

• Nissan R32 GT-R

• Nissan R33 GT-R

• Nissan R34 GT-R
  Only for use with OEM alloy rear knuckles.

What’s Included:

• (2) Spherical strut bushings (left and right)

• (1) Set of install instructions

Notes:

• Press or proper bushing tool required for installation

• Will not fit steel knuckles

• Wheel alignment recommended after installation

• Not compatible with non-GT-R or non-alloy rear knuckles

Improve the precision and performance of your rear suspension with GKTech’s Alloy Knuckle