SkidNation MX-5 NC Rear Traction Foundation Kit

The NC MX-5 represented a significant shift in suspension design, moving to a sophisticated multi-link rear setup. While this offers superior mechanical grip over the earlier generations, it also introduces more points of failure. With age, the numerous rubber bushings in the rear control arms and integral links begin to deflect significantly under load.

On an NC, worn rear bushings don’t just feel “soft” – they cause the rear end to “steer” itself as the suspension compresses (dynamic toe change), making the car feel nervous at high speeds and unpredictable when powering out of corners. The NC Rear Traction Foundation Kit replaces the high-compliance factory rubber with polyurethane and provides fresh, high-tensile hardware to ensure your alignment stays exactly where you set it.

SkidNation NC MX-5 Rear Traction Foundation Kit

What’s inside the kit:

• Rear Axle Polyurethane Bush Kit – A comprehensive set of bushings for the NC’s multi-link rear suspension.
  • Stabilized Geometry: Replaces the aging rubber in the rear control arms to maintain consistent toe and camber angles, even under high lateral G-loads.
  • Stiffness Options: 80 ShA for a “Fast Road” setup that balances performance with daily usability, or 90 ShA for track-focused builds where steering precision is paramount.
  • Pro Tip: The NC rear end has many more pivot points than the NA/NB. Upgrading to PU here provides a massive jump in “connectedness” through the driver’s seat.

• High-Strength Rear Alignment Bolts – A complete set of top-grade eccentric bolts for the rear subframe.
  • Top-Grade Hardware: High-tensile steel designed to hold your alignment settings securely, preventing the “slipping” common with worn factory eccentrics.
  • Anti-Seize Reliability: The NC is particularly prone to rear alignment bolts seizing into the suspension sleeves. These replacements ensure that your next alignment session is a 30-minute job, not a three-hour ordeal with a torch.
  • Why it’s here: Precise rear alignment is the key to the NC’s handling. Without fresh, adjustable hardware, you are stuck with whatever “lazy” alignment the factory bolts allow.

Key benefits

• Eliminated Rear-Steer: The back of the car follows the front predictably, without the “squirming” sensation during mid-corner bumps.
• Increased Traction: By keeping the tire contact patch stable, you can put more power down earlier when exiting corners.
• Refined Feedback: You’ll receive clearer communication through the chassis about how much grip the rear tires have left.
• Linear Breakaway: When the limit is reached, the transition to oversteer is progressive and easy to manage rather than “snappy.”
• Ease of Maintenance: Fresh, coated hardware means your alignment technician will actually enjoy working on your car.

This kit is for you if:

• Your NC feels “nervous” or unsettled during high-speed cornering.
• You are installing lowering springs or coilovers and want to ensure the rest of the geometry can keep up.
• You’ve found that your rear alignment “wanders” or is currently impossible to adjust due to seized bolts.
• You want to sharpen the handling of your MX-5 without the extreme harshness of solid spherical bearings.

This kit is NOT for you if:

• You want a “Lincoln-soft” ride: As with any polyurethane upgrade, you will feel more of the road surface through the chassis.
• You are only replacing one arm: We recommend doing the entire rear axle at once to ensure a balanced and predictable handling characteristic.

Fits all 2005–2015 models – NC (Mk3).

Shipping worldwide.