4WD Suspension stocks replacement and upgrade leaf springs from Dobinsons and Tough Dog for Australian utes and leaf-sprung 4WDs. The range covers rear leaf springs for current dual-cab utes such as the Toyota Hilux, Ford Ranger, Isuzu D-Max, Mazda BT-50, Mitsubishi Triton, Nissan Navara and Volkswagen Amarok, plus front and rear leaf springs for older leaf-sprung vehicles including the LandCruiser 40, 45, 60 and 75 Series and the Nissan Patrol MQ and GQ/GU leaf ute.
A leaf spring pack carries the weight of the vehicle and locates the axle at the same time. Factory packs are built for an empty tray, so once a canopy, drawers, a steel tray or a regular tow-ball load is added, they tend to sag and ride on the bump stops. Aftermarket leaf springs are built in different load ratings, so you can match the spring to the weight the vehicle actually carries. Many of the springs in this range also raise the rear of the vehicle, with most Dobinsons options listed at around 2 inches of lift and some at 1 inch, depending on the model.
Rear leaf springs are the most common upgrade. Front leaf springs are listed separately for vehicles with a leaf-sprung front axle, such as the solid-axle Hilux (1979-1997), LandCruiser 40 to 75 Series and Patrol MQ.
Start with the constant load, which is the weight that is on the vehicle all the time, not the occasional heavy trip. A spring rated for a heavy constant load will ride firmly when the tray is empty, and a light-rated spring will sag under a permanent canopy and drawer setup. Products marked "Load & Lift Options" let you pick the load rating from a dropdown on the product page. If the rest of the suspension is also being replaced, match the rear leaf springs to the lift height of the front so the vehicle sits level.
Leaf springs do not increase your legal payload. If you are close to your vehicle's GVM, read do you need a GVM upgrade first. For loads that change from trip to trip, air helper kits can be added on top of correctly rated leaf springs.
We are suspension specialists with a fitting workshop in Dandenong, Victoria, and we deliver Australia wide. If you are not sure which load rating suits your setup, call us on 1300 120 020 with your vehicle, accessories and typical load and we will help you pick the right spring.
Each product is listed by make, model and year range. Use the parts finder to filter by your vehicle, then check the fitment table on the product page. Build date matters on several models, so have your build month and year ready. If you are unsure, call 1300 120 020 and we will confirm fitment before you order.
They do different jobs. New leaf springs fix a rear end that sags under a load that is always on the vehicle, and they can add lift. Airbag helper kits are adjustable, so they suit loads that come and go, such as a caravan or camper trailer. Airbags work best on top of leaf springs that are already correctly rated for the constant load.
Most springs in this range raise the rear, commonly by about 2 inches on Dobinsons options, with the exact height shown on each product. Final ride height depends on the weight on the vehicle. Lift limits vary by state, so see our guide on whether lift kits are legal in Australia before choosing a raised spring.
Browse the full range of Dobinsons and Tough Dog leaf springs above, use the parts finder to narrow it to your vehicle, or call 1300 120 020 for advice.
Rear sag under a canopy or tow load? Our guides explain the fix per vehicle: Hilux N70/N80, Ranger PX, Triton, Colorado, D-Max & MU-X, Navara leaf spring upgrade. See also coil springs vs leaf springs. More vehicle guides on our blog.
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