Toughdog Rear Leaf Springs for Toyota Hilux IFS — Heavy-Duty Upgrade

These Toughdog leaf springs are primarily designed as heavy-duty replacement springs to restore original ride height while supporting increased constant loads — they are not specifically marketed as lift springs. Depending on your selected spring rate and current load, you may experience a modest lift of 0-25mm compared to worn factory springs, particularly if you choose a heavier-duty rating to support accessories like canopies and drawers. The actual ride height achieved will vary based on your constant accessory weight, vehicle condition, and chosen spring rate. For dedicated lift applications, these springs can be combined with extended rear shackles and a front lift kit to achieve a balanced raised stance across the entire vehicle.

This package includes one pair (2 pieces) of Toughdog rear leaf springs precision-manufactured for Toyota Hilux IFS models, engineered to your selected load rating. The springs are sold as complete multi-leaf assemblies ready for installation. Please note that this kit does NOT include U-bolts, spring bushes, shackles, bump stops, or shock absorbers — these components are sold separately and should be inspected and replaced if worn during installation. If you're building a complete rear suspension upgrade, we recommend ordering new U-bolts (as they should never be reused), polyurethane spring bushes for improved durability, and matching rear shock absorbers for optimal performance.

Yes, these Toughdog leaf springs are excellent for towing applications when the correct spring rate is selected based on your constant accessory load. They provide improved rear-end stability, reduced squat under tongue weight, and better weight distribution when towing caravans, camper trailers, or boat trailers. However, it's critical to select your spring rate based on your permanent vehicle load (canopy, drawers, etc.), NOT on towing capacity — the springs should support your constant weight, and the additional towing load is managed through proper weight distribution and potentially airbag assistance. For maximum towing versatility and the ability to adjust support based on variable trailer weights, consider adding airbag suspension which works perfectly alongside these leaf springs.

While these leaf springs are direct replacements for factory springs, we strongly recommend inspecting and potentially replacing related components during installation. U-bolts should always be replaced rather than reused as they stretch during initial installation and can fail if re-torqued. Spring bushes, shackles, and shackle bushes should be carefully inspected and replaced if worn or perished — this is the perfect time to upgrade to polyurethane bushes for improved durability and reduced maintenance. If your vehicle has significant front lift or you're installing these as part of a complete lift kit, upgraded rear shock absorbers matched to the new spring rates are essential for proper damping and ride quality, and front control arms may be needed to correct suspension geometry.

Yes, a professional four-wheel alignment is absolutely mandatory after installing new leaf springs on your Toyota Hilux IFS. While leaf springs primarily affect the rear suspension, changing rear ride height impacts the vehicle's overall geometry, weight distribution, and can affect front-end alignment settings through load transfer. Proper alignment ensures even tyre wear, optimal handling characteristics, correct steering feel, and maintains manufacturer safety specifications. The alignment should be performed after the springs have been installed, all bolts torqued to specification, and ideally after a brief settling period with the vehicle loaded to its typical constant accessory weight. Skipping the alignment can lead to premature tyre wear, poor handling, and potential safety issues.

Spring rate selection should be based exclusively on your constant accessory load — the permanent weight your Hilux carries at all times, not occasional loads. To determine your constant load, add up the weight of permanently installed accessories: canopy or tub (typically 50-150kg), drawer systems (30-80kg), dual batteries (20-40kg), empty long-range fuel tanks (20-30kg), fridge slides and mounting (25-45kg), permanently mounted toolboxes, and recovery gear. Light-duty springs suit minimal constant loads (0-100kg), medium-duty handles typical trade or touring setups (100-250kg), and heavy-duty supports serious accessory loads (250kg+). Critically, do NOT factor in occasional loads like camping gear, passengers, or trailer tongue weight when selecting spring rate — choosing springs too heavy for your actual constant load will result in a harsh, uncomfortable ride.

These leaf springs can provide a modest increase in rear ride height (0-25mm depending on load and spring rate), which may allow slightly larger tyres, but they are not specifically designed as lift springs for significant tyre clearance gains. For most Hilux IFS models, the primary limitation for larger tyres is front suspension clearance, body mount locations, and wheel arch design rather than rear spring height. If your goal is to fit significantly larger tyres (32-33 inches or bigger), you'll need a comprehensive lift kit including front suspension lift, potentially body lift, and possibly wheel arch modifications. These rear springs work excellently as part of a complete lift system but should be combined with appropriate front lift components for balanced geometry and maximum tyre clearance.

Toughdog leaf springs are backed by the manufacturer's comprehensive warranty covering defects in materials and workmanship under normal use conditions. Warranty terms typically include coverage against spring breakage, premature sagging beyond specifications, and manufacturing defects when the springs are installed correctly by a qualified technician and used within their rated load capacity. To maintain warranty validity, it's essential to select the correct spring rate for your constant load, have the springs professionally installed with proper torque specifications, and avoid overloading beyond the spring's rated capacity. For specific warranty duration and detailed terms and conditions, refer to the Toughdog warranty documentation included with your springs or contact our team for clarification before purchase.

Absolutely — when correctly matched to your constant load, these Toughdog leaf springs deliver excellent ride quality for daily driving, highway commuting, and urban use while maintaining the rugged capability needed for weekend adventures and work applications. Toughdog engineers these springs to balance load-carrying performance with on-road comfort, avoiding the harsh ride often associated with agricultural or extreme heavy-duty springs. The key to comfortable daily driving is selecting the appropriate spring rate: if you have minimal constant accessories, choose light or medium-duty springs rather than over-springing with heavy-duty rates you don't need. Properly rated springs will provide a comfortable, controlled ride for solo commuting while still supporting your constant load without sagging, making them ideal for Hilux owners who use their vehicle for both work and daily family transport.