GKTech Infiniti Nissan Z34 370z/G37 Rear subframe slip-in collars - Semi-solid

The GKTech Rear Subframe Slip-In Collars for the Nissan 370Z and Infiniti G37 are designed to reduce subframe movement and improve drivetrain stability without the full NVH increase of solid bushings. These semi-solid collars slide over the factory subframe bushings to effectively "lock" the subframe in place—minimizing slop under acceleration, braking, and cornering while retaining some compliance for daily drivability.

CNC-machined from high-strength 6061-T6 aluminum, this set is a cost-effective, reversible upgrade that delivers sharper handling and more direct rear-end feedback—ideal for street and spirited track driving.

Key Features:

• Reduces Subframe Movement: Improves traction, alignment stability, and handling response

• Semi-Solid Design: Balances performance with street-friendly comfort

• CNC-Machined Aluminum: Lightweight and durable with a precise press-in fit

• Simple Install: Slip-in design installs without removing the subframe

Specifications:

• Material: 6061-T6 billet aluminum

• Finish: Anodized (color may vary by batch)

• Install Time: ~1–2 hours

Compatibility:

• Nissan 370Z (Z34) – 2009–2020

• Infiniti G37 Coupe / Sedan (V36)
  Fits OEM rear subframe bushings

What’s Included:

• (8) Slip-in collar pieces (upper and lower sets for all four subframe points)

• (1) Installation reference sheet

Notes:

• No need to remove subframe—can be installed with basic hand tools

• Ideal for cars with aftermarket arms or diff upgrades

• A great first step before committing to solid subframe bushings

Tighten up your rear end without sacrificing comfort with GKTech’s Semi-Solid Subframe Collars—engineered for better response, grip, and control where it matters most.