FORMULA Suspension Springs with Fitting Position Rear Axle for Vehicle

The Importance of U-Bolts

• Seized or Broken U-Bolts: Old U-bolts often seize or break, requiring cutting for removal.
• Damaged Threads: Removing old U-bolts can damage threads, leading to loose U-bolts and voided warranties.
• Incorrect Length: Stronger leaf springs may need longer U-bolts.

• Shape: Square, round, or semi-round.
• Material Size: Measure the rod's diameter at the thread.
• Inside Measurement: Ensure it fits over the differential or spring pack.
• Leg Length: Measure from the underside of the top to the leg end.
• Thread Length: Ensure enough thread for secure fastening.
• Material Grade: Use high-grade materials for durability.

• Re-tension: Re-tighten U-bolts 7-10 days after installation to secure the springs.
• Correct Fit: Ensure U-bolts match your vehicle's specifications.

The Importance of U-Bolts

• Seized or Broken U-Bolts: Old U-bolts often seize or break, requiring cutting for removal.
• Damaged Threads: Removing old U-bolts can damage threads, leading to loose U-bolts and voided warranties.
• Incorrect Length: Stronger leaf springs may need longer U-bolts.

• Shape: Square, round, or semi-round.
• Material Size: Measure the rod's diameter at the thread.
• Inside Measurement: Ensure it fits over the differential or spring pack.
• Leg Length: Measure from the underside of the top to the leg end.
• Thread Length: Ensure enough thread for secure fastening.
• Material Grade: Use high-grade materials for durability.

• Re-tension: Re-tighten U-bolts 7-10 days after installation to secure the springs.
• Correct Fit: Ensure U-bolts match your vehicle's specifications.

The Importance of U-Bolts

• Seized or Broken U-Bolts: Old U-bolts often seize or break, requiring cutting for removal.
• Damaged Threads: Removing old U-bolts can damage threads, leading to loose U-bolts and voided warranties.
• Incorrect Length: Stronger leaf springs may need longer U-bolts.

• Shape: Square, round, or semi-round.
• Material Size: Measure the rod's diameter at the thread.
• Inside Measurement: Ensure it fits over the differential or spring pack.
• Leg Length: Measure from the underside of the top to the leg end.
• Thread Length: Ensure enough thread for secure fastening.
• Material Grade: Use high-grade materials for durability.

• Re-tension: Re-tighten U-bolts 7-10 days after installation to secure the springs.
• Correct Fit: Ensure U-bolts match your vehicle's specifications.

Greaseable Shackles

• Easy Maintenance: Greasable pins for hassle-free lubrication.
• Enhanced Protection: Shields bushes from dirt and wear.
• Superior Durability: Ideal for tough, off-road conditions.

Formula Coil Springs

Formula Coil Springs are engineered to deliver consistent load control, improved ride stability, and long-term durability across a wide range of vehicle applications. Manufactured using high-grade spring steel and precision winding processes, these coil springs are designed to meet the demands of both everyday driving and more demanding operating conditions.

Each spring is developed to maintain factory ride characteristics while enhancing vehicle control, helping to reduce body roll, improve handling response, and support optimal suspension geometry. A durable protective coating is applied to resist corrosion and environmental wear, ensuring sustained performance over the life of the product.

Formula Coil Springs are manufactured to exacting tolerances for reliable fitment and straightforward installation, making them an ideal replacement or upgrade solution for passenger vehicles, 4WDs, and light commercial applications.

Key Features & Benefits

• Precision-engineered for consistent spring rates and reliable performance
• Manufactured from high-strength spring steel for durability and longevity
• Protective coating for enhanced corrosion resistance
• Designed to maintain correct ride height and vehicle balance
• Direct-fit replacement for efficient installation

Formula Coil Springs represent a dependable suspension solution, aligning proven engineering principles with modern manufacturing standards to deliver confidence, control, and comfort on the road.

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.

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.

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.

• Precision mandrel & die-formed
• Oil quenched, hardened & tempered for maximum life.
• Military wrap for safety
• Accurately heat-treated
• Manufactured from high grade spring steel
• Anti-friction pads in most applications
• Pre-stressed to maintain ride height
• Diamond cut ends
• Tapered Leaf Ends
• Bolt Clip Liners - To reduce noise & friction. 
• Inter-Leaf Graphite Coating - For further reduction of friction. 
• Bolt Clips & Military Wraps - To prevent leaf spread & provide safety 

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.

Our leaf springs are crafted to handle front and rear loads ranging from 50kg to 800kg and heights from 20mm to 80mm. Whether you seek enhanced comfort or heavy-duty performance, our leaf springs offer a range of special features to ensure your vehicle receives the ultimate suspension upgrade. Choose Fulcrum Suspensions for Superior Leaf Spring Solutions At Fulcrum Suspensions, we specialize in delivering premium leaf spring suspension solutions. Whether you require standard or heavy-duty leaf springs, or robust leaf spring bushes, our comprehensive range is designed to meet your vehicle's specific requirements and optimize its performance.

The Benefits of Quality Leaf Spring Suspension Leaf springs play a crucial role in vehicle suspension systems, offering numerous advantages:

• Durability and Reliability: Built to endure heavy loads and rugged driving conditions, our leaf springs are perfect for diverse applications.
• Improved Vehicle Handling: A well-functioning leaf spring suspension enhances vehicle stability and handling, especially under heavy loads.
• Enhanced Ride Comfort: Quality leaf springs and bushes reduce noise and vibrations, significantly improving ride comfort.

Explore Our Range of Leaf Spring Products Discover our extensive lineup of leaf spring products, including:

Standard and Heavy-Duty Leaf Springs: Designed for longevity and performance across a wide range of vehicles and needs. Leaf Spring Bushes: Durable bushes that ensure smooth operation and longevity of your leaf springs.

Trust Fulcrum Suspensions for your leaf spring needs and elevate your vehicle's performance with confidence.

Here's why you shouldn't re-use U-Bolts:
https://fulcrumsuspensions.com.au/why-you-shouldnt-reuse-ubolts