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  1. Home
  2. Springs
  3. Leaf Springs

Leaf Spring & Air Suspension Helper Kits for Australian 4WDs

4WD Suspension stocks premium leaf spring air suspension helper kits designed to enhance load-carrying capacity and ride quality for Australian utes, wagons and tourers. Our range features Airbag Man helper kits engineered specifically for popular models including Ford Ranger PX1, PX2 and PX3, plus Holden Colorado RG. All products are held in Australian stock with fast dispatch to every state and territory.

Types of Leaf Springs Explained

Air suspension helper kits work in conjunction with your existing leaf springs to provide adjustable load support and improved ride quality. Unlike traditional leaf spring upgrades that offer fixed rates, air helper systems allow you to inflate or deflate airbags to match your current load requirements. This technology is particularly beneficial for vehicles that alternate between unladen driving and heavy towing or payload situations. The Airbag Man systems featured in our range install between the chassis and axle, supplementing factory leaf springs without requiring replacement or modification of original suspension components.

How to Choose the Right Leaf Springs

Selecting the appropriate leaf spring solution depends on your typical vehicle usage and load requirements. If you regularly tow caravans, carry heavy work equipment, or fit substantial accessories like canopies and drawer systems, air suspension helper kits provide the adjustability to maintain level ride height and optimal handling. Consider your maximum payload needs and whether you require constant support or the flexibility to adjust pressure for unladen driving. Budget-conscious buyers will appreciate that helper kits offer professional-grade load support without the expense of complete leaf spring replacement.

Popular Vehicle Applications

  • Ford Ranger PX1/PX2 (2011-2018) – Ideal for tradespeople and tourers running canopies, toolboxes and towing heavy trailers
  • Ford Ranger PX3 (2018+) – Supports the latest generation Rangers with upgraded payload and towing demands
  • Holden Colorado RG (2012+) – Perfect for Colorado owners experiencing rear-end sag with campers or work equipment
  • Toyota Hilux – Compatible helper kits available for Australia's best-selling ute across multiple generations
  • Mitsubishi Triton – Supports MQ and MR models popular with recreational and commercial users
  • Nissan Navara – Assists D40 and NP300 variants commonly used for touring and heavy-duty applications
  • Isuzu D-Max – Enhances load capability for work-focused D-Max operators

Why Buy From 4WD Suspension

4WD Suspension is your specialist source for quality leaf spring and air suspension solutions, with all products held in Australian stock for rapid dispatch. Our experienced team understands the unique demands of Australian 4WD conditions and can provide expert advice on the right setup for your vehicle and usage. Call us on 1300 120 020 to discuss your requirements, or browse our range online with confidence knowing you're dealing with dedicated suspension specialists.

How do I know which leaf springs fit my vehicle?

Each product in our range is clearly labelled with specific vehicle compatibility, including make, model and generation (such as Ford Ranger PX1/PX2/PX3 or Holden Colorado RG 2012+). Use our vehicle parts finder to filter products that match your exact year and model, or contact our team on 1300 120 020 with your vehicle details and we'll confirm the correct fitment. Always verify your vehicle's build date and variant, as suspension specifications can vary within model ranges.

What are the benefits of air suspension helper kits versus upgraded leaf springs?

Air suspension helper kits from Airbag Man offer adjustable load support that you can modify on demand, allowing you to inflate the airbags when carrying heavy loads and deflate them for improved unladen ride quality. This adjustability means one system suits multiple use cases, from daily driving to full towing capacity. They're also typically easier and less expensive to install than complete leaf spring replacement, and they preserve your factory suspension warranty since they supplement rather than replace original components.

Can I install leaf spring helper kits myself or do I need a professional?

Airbag Man helper kits are designed for straightforward installation and many experienced home mechanics successfully fit them with basic tools and a vehicle jack. The kits bolt between your chassis and axle without requiring leaf spring removal or modification. However, if you're not confident working under your vehicle or lack appropriate safety equipment, we recommend professional installation by a qualified suspension specialist. Proper installation is essential for safety and optimal performance, and professional fitting typically takes 2-3 hours.

Browse our complete range of leaf spring air suspension helper kits above, use our vehicle parts finder to identify products compatible with your specific 4WD, or call our expert team on 1300 120 020 for personalised advice on the best solution for your requirements.

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87Products Found
Toughdog Rear Leaf Springs Holden Rodeo 1981-1988 | Heavy Duty Pair

Toughdog Rear Leaf Springs Holden Rodeo 1981-1988 | Heavy Duty Pair

$480.00

Anonymous

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Toughdog Rear Leaf Springs Holden Rodeo 1988-2003 | Heavy Duty Pair

Toughdog Rear Leaf Springs Holden Rodeo 1988-2003 | Heavy Duty Pair

$480.00

Anonymous

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Toughdog Rear Leaf Springs Holden Rodeo RA 2003-2008 | Heavy Duty

Toughdog Rear Leaf Springs Holden Rodeo RA 2003-2008 | Heavy Duty

$600.00

Anonymous

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Toughdog Rear Leaf Springs Isuzu D-Max 2008-2012 | Heavy Duty Pair

Toughdog Rear Leaf Springs Isuzu D-Max 2008-2012 | Heavy Duty Pair

$600.00

Anonymous

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Toughdog Rear Leaf Springs Jeep Cherokee XJ (Pair) | HD Suspension

Toughdog Rear Leaf Springs Jeep Cherokee XJ (Pair) | HD Suspension

$740.00

Anonymous

Toughdog Rear Leaf Springs LDV T60 (Pair) | Heavy Duty Performance

Toughdog Rear Leaf Springs LDV T60 (Pair) | Heavy Duty Performance

$670.00

Anonymous

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Toughdog Rear Leaf Springs Mazda Bravo (Pair) | Heavy Duty Suspension

Toughdog Rear Leaf Springs Mazda Bravo (Pair) | Heavy Duty Suspension

$520.00

Anonymous

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Toughdog Rear Leaf Springs Mazda BT50 2006-2011 | Heavy Duty Pair

Toughdog Rear Leaf Springs Mazda BT50 2006-2011 | Heavy Duty Pair

$640.00

Anonymous

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Toughdog Rear Leaf Springs Mazda BT50 2011-2020 | Heavy Duty Pair

Toughdog Rear Leaf Springs Mazda BT50 2011-2020 | Heavy Duty Pair

$610.00

Anonymous

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Toughdog Rear Leaf Springs Mazda BT50 2020+ | Heavy Duty Pair

Toughdog Rear Leaf Springs Mazda BT50 2020+ | Heavy Duty Pair

$620.00

Anonymous

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Toughdog Rear Leaf Springs Mitsubishi Triton ME-MJ 1986-1996 | Heavy Duty

Toughdog Rear Leaf Springs Mitsubishi Triton ME-MJ 1986-1996 | Heavy Duty

$650.00

Anonymous

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Toughdog Rear Leaf Springs Mitsubishi Triton MK 1996-2006 | HD Pair

Toughdog Rear Leaf Springs Mitsubishi Triton MK 1996-2006 | HD Pair

$620.00

Anonymous

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Toughdog Rear Leaf Springs Mitsubishi Triton ML-MN | Heavy Duty Pair

Toughdog Rear Leaf Springs Mitsubishi Triton ML-MN | Heavy Duty Pair

$560.00

Anonymous

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Toughdog Rear Leaf Springs Mitsubishi Triton ML-MN | Heavy Duty Pair

Toughdog Rear Leaf Springs Mitsubishi Triton ML-MN | Heavy Duty Pair

$520.00

Anonymous

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Toughdog Rear Leaf Springs Mitsubishi Triton MQ-MR | Heavy Duty Pair

Toughdog Rear Leaf Springs Mitsubishi Triton MQ-MR | Heavy Duty Pair

$570.00

Anonymous

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Toughdog Rear Leaf Springs Mitsubishi Triton MV | Heavy-Duty Upgrade

Toughdog Rear Leaf Springs Mitsubishi Triton MV | Heavy-Duty Upgrade

$690.00

Anonymous

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Toughdog Rear Leaf Springs Nissan D22 Navara (Pair) | HD Suspension

Toughdog Rear Leaf Springs Nissan D22 Navara (Pair) | HD Suspension

$490.00

Anonymous

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Toughdog Rear Leaf Springs Nissan D40 Navara | Heavy Duty Pair

Toughdog Rear Leaf Springs Nissan D40 Navara | Heavy Duty Pair

$670.00

Anonymous

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Toughdog Rear Leaf Springs Nissan Navara D21 | Heavy Duty Pair

Toughdog Rear Leaf Springs Nissan Navara D21 | Heavy Duty Pair

$490.00

Anonymous

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Toughdog Rear Leaf Springs Nissan Navara NP300 | Heavy Duty Upgrade

Toughdog Rear Leaf Springs Nissan Navara NP300 | Heavy Duty Upgrade

$620.00

Anonymous

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Toughdog Rear Leaf Springs Nissan Patrol GQ Ute | Heavy Duty Suspension

Toughdog Rear Leaf Springs Nissan Patrol GQ Ute | Heavy Duty Suspension

$920.00

Anonymous

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Toughdog Rear Leaf Springs Nissan Patrol MQ/MK | Heavy-Duty Pair

Toughdog Rear Leaf Springs Nissan Patrol MQ/MK | Heavy-Duty Pair

$800.00

Anonymous

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Toughdog Rear Leaf Springs Toyota 4Runner/Surf | Heavy Duty Upgrade

Toughdog Rear Leaf Springs Toyota 4Runner/Surf | Heavy Duty Upgrade

$490.00

Anonymous

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Toughdog Rear Leaf Springs Toyota Hilux IFS | Heavy-Duty Upgrade

Toughdog Rear Leaf Springs Toyota Hilux IFS | Heavy-Duty Upgrade

$600.00

Anonymous

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