Nissan Navara: NP300 Rear Leaf Spring Main Blade Fracture

The NP300 (D23) Navara uses a rear leaf spring pack with a single-piece main blade. This main blade has been documented to fracture — typically near the spring eye or at the U-bolt clamp pad — causing sudden and catastrophic loss of rear suspension control. The fracture can allow the axle to rotate forward under braking, creating a serious understeer or vehicle pitch condition. The fault attracted regulatory attention in multiple markets including Australia where a recall was issued, and resulted in a class-action lawsuit in some jurisdictions.

• Visible crack or complete fracture in the main leaf spring blade, often with rust weeping from the crack
• Rear of vehicle sits noticeably lower on one side with no load in the tray
• Clunking or banging from rear suspension over bumps inconsistent with worn bushes
• Sudden change in vehicle handling or rear-end instability under braking

1. 1

   Crawl under the rear of the vehicle and visually inspect the full length of both leaf spring main blades for cracks, particularly at the forward spring eye, U-bolt seat, and rear shackle eye.

2. 2

   Look for fresh rust streaks radiating from a single point which indicate a propagating crack.

3. 3

   Check if a Nissan recall has been performed — the VIN can be cross-referenced.

Parts involved: Rear leaf spring.

$700 to $2,000 at New Zealand independent workshop rates. That is for this job on its own, not for the car.

An estimate, in NZD, for the repair as normally carried out. What a specific car costs depends on which part has failed and what it damaged on the way — treat this as the floor for a negotiation, not a quote.

• “Has this vehicle had the Nissan rear leaf spring recall work performed? Can you show documentation?”
• “Has the rear suspension ever been inspected or replaced under warranty?”
• “Has the vehicle been used for towing or heavy payloads regularly?”

The failure described above is documented in published sources — owner forums, technical service bulletins, recall notices and workshop write-ups — held in our fault database. The inspection instructions and the cost estimate are KickTyres’ own interpretation of them, and it is a starting point for an inspection rather than a manufacturer statement.