GKTech Nissan Rear subframe slip-in collars

The GKTech Rear Subframe Slip-In Collars are a cost-effective solution for reducing subframe movement in your Nissan S-chassis or RWD R-chassis Skyline without committing to solid bushings. These CNC-machined aluminum collars install between the subframe and chassis, tightening the tolerance of the factory rubber bushings and dramatically improving drivetrain stability, alignment retention, and handling precision.

Ideal for drift, grip, or spirited street driving, the slip-in collars maintain some compliance while locking the subframe down under load—delivering a noticeable difference in rear-end response and traction.

Key Features:

• Reduces Subframe Flex: Improves traction and suspension consistency

• CNC-Machined 6061-T6 Aluminum: Lightweight, strong, and corrosion-resistant

• No Press Needed: Installs with the subframe in the car

• Street-Friendly Compliance: Great for dual-purpose builds

Specifications:

• Material: 6061-T6 billet aluminum

• Finish: Anodized (may vary by batch)

• Install Time: ~1–2 hours with basic tools

Compatibility:

• Nissan S13 / S14 / S15 240SX / Silvia (RWD only)

• Nissan R32 / R33 / R34 Skyline (RWD only)
  Not compatible with AWD or HICAS models

What’s Included:

• (8) Slip-in collars (top and bottom for all 4 subframe points)

• (1) Installation guide

Notes:

• Can be installed without fully dropping the subframe

• Perfect for cars with aftermarket arms, diff braces, or solid engine/trans mounts

• A great first step before committing to poly or solid bushings

Tighten up your rear end with GKTech’s Rear Subframe Slip-In Collars—a simple, effective upgrade for sharper handling and more confident performance.