Trunk Lid Lift Spring ⚙️

This lift spring is a small but critical helper for the rear hatch/trunk lid. It stores tension and releases it in a controlled way so the lid opens smoothly and stays supported. When you pop the release, the spring assists the hinge mechanism, reducing strain on your hands, hinges, and latch hardware.

Why This Part Is Needed ✅

The factory hinge system is designed to work with a specific spring rate. The correct tension keeps the lid balanced through its travel, prevents sudden drop, and helps the latch align properly every time you close it.

How It Works ?

As the lid closes, the spring loads up (twists/extends depending on hinge design). When opening, that stored energy assists the hinge, giving a steady lift and controlled movement. It also helps compensate for lid weight and minor body flex.

If the Spring Is Worn or Broken ⚠️

• Lid feels heavy and may not stay up
• Sudden drop risk, possible injury or paint damage
• Hinge wear increases, latch may misalign
• Rattles or uneven closing gaps over time

Best Practice ?

Replace in pairs when possible to keep equal tension left-to-right and restore OEM opening feel.

Compatibility ?

• 370Z
• Firelady Z