Home Formula 4x4 Single Rear Parabolic Leaf Spring - approx. 50mm Lift at 300-500kg Troopy & Dual Cab, 400-600kg Single Cab to suit Toyota LandCruiser 78 & 79 Series 1999-on

Formula 4x4 Single Rear Parabolic Leaf Spring - approx. 50mm Lift at 300-500kg Troopy & Dual Cab, 400-600kg Single Cab to suit Toyota LandCruiser 78 & 79 Series 1999-on

NOW $558.00
Or 4 interest-free payments of $139.50
In stock at 1 of our locations
🚛 Free NZ shipping
🔒 12 month warranty on all parts
NZ WOF compliant
🔧 Fitting available NZ wide
Introducing Formula 4x4's Parabolic Leaf Springs for 4WD vehicles.

Designed to revolutionise traditional leaf spring systems, these innovative springs offer:
  • Comfortable Ride: Utilising modern technology and a tapered "parabolic" design, Formula 4x4's Parabolic Leaf Springs provide a smoother and quieter ride compared to traditional heavy leaf packs.
  • Enhanced Flexibility: With fewer leafs and independent action, these springs adapt to varying loads and terrain conditions, ensuring all four wheels stay grounded for maximum traction and safety.
  • Reduced Weight: Made from special grade steel and featuring a tapered design, these springs dramatically reduce unsprung weight, improving handling and comfort both loaded and unloaded.
  • Superior Strength: Despite their lighter weight, Parabolic Leaf Springs maintain exceptional load carrying capability, providing durability and performance in challenging off-road conditions.
  • Minimised Friction: The unique design minimises interleaf friction, reducing noise and helping to prevent rust buildup for long-lasting performance.
  • Enhanced Safety: By absorbing shocks more effectively, these springs minimise stress on differential gears, ensuring smoother rides and reducing the risk of wheel spin in rough terrain.


Upgrade your 4WD experience with Formula 4x4's Parabolic Leaf Springs - combining innovation, comfort and reliability for all your off-road adventures.

Shipping Information

Most orders land in 5–12 business days. We'll keep you updated at every step of the journey.


The Kren Bits journey:

  • Order received — Day 0
  • With fulfilment — Day 1–2
  • Heading to courier — Day 2–4
  • Shipped — Day 3–7
  • Almost there — Day 5–10
  • Delivered — Day 5–14

Where your part ships from:

Your order ships from the closest warehouse with available stock across our six-warehouse network — NZ, AU, TH, UK, US, and CN.


We email you at every real milestone — order received, with fulfilment, heading to courier, shipped, almost there, delivered. No chasing, no vague waits.


For more details, visit our Track Your Order page.

Product Enquiry

Got a question about this product? Need to check fitment for your vehicle? Fill in the form below and we'll get back to you within 24 hours.


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