The Toughdog HD Rear Leaf Springs are a direct-fit pair for the Mitsubishi Triton MK (1996-2006), built as a heavy-duty multi-leaf replacement for owners running constant accessory loads. This HD-rated pair restores correct rear ride height under load from canopies, tool boxes, bullbars and touring gear, and pairs well with Toughdog shock absorbers for balanced on-road handling. Each spring uses a semi-elliptical multi-leaf design with powder-coated leaves for corrosion resistance. Backed by a Toughdog manufacturer warranty, in stock in Australia with fitment support from our team.
Browse all compatible suspension parts for your Rear Leaf Springs Mitsubishi Triton Mk using our parts finder.
| Make | Model | Series | Years | Engine |
|---|---|---|---|---|
| Mitsubishi | Triton | MK | 1996-2006 | 2.5L 4D56 diesel, 2.8L 4M40 diesel, 2.4L 4G64 petrol, 3.0L 6G72 V6 petrol |
Not sure if this fits your vehicle? Contact our suspension experts or check our FAQ page.
Choosing the right spring rate comes down to your constant accessory load — the weight that sits on the vehicle at all times, not just occasional cargo. Common items that affect selection include steel canopies, tool boxes, drawer systems, bullbars, winches, dual battery trays and long-range fuel tanks. If your Triton MK carries a mix of these permanently, the HD rating in this pair is built to hold correct ride height rather than sag over time; contact our team with your accessory list if you want a rate check before ordering.
Fitting rear leaf springs on the Triton MK involves removing the axle U-bolts, unbolting the leaf pack from the front hanger and rear shackle, and swapping in the new pack with fresh bushes — a job for an experienced DIY installer or your usual suspension workshop. Wheel alignment is mandatory once the new springs are fitted, as rear ride height changes affect overall geometry. Allow a 500km bedding-in period before final alignment for the leaves to settle into their working arc. If you're also correcting front geometry at the same time, look at our control arm upgrades to complete the setup.
Toughdog has built its suspension range around Australian testing conditions, covering everything from daily commuters to loaded tourers and work utes. This HD leaf spring pair is backed by a Toughdog manufacturer warranty, giving you cover on manufacturing defects from day one. Trades and grey nomads alike run Toughdog gear because it's designed to handle constant load without the harsh ride of some aftermarket options — view the full Toughdog range to see matching shocks and coils.
This pair suits Triton MK owners running a canopy, tool boxes or a bullbar permanently, tradies who need the tray to sit level under gear, and tourers towing a camper or box trailer regularly. If your load varies trip to trip rather than sitting constant, also look at airbag suspension to fine-tune rear height on demand.
Order the Toughdog HD Rear Leaf Springs for your Triton MK from Australian stock with fast dispatch and fitment support from our team, or browse our full lift kit range to build a complete suspension package.
New to Triton suspension? Read our guide to common Triton suspension problems and how to fix them.
Yes, this pair is a direct-fit rear leaf spring for the Mitsubishi Triton MK built between 1996 and 2006, covering the 2.5L 4D56 diesel, 2.8L 4M40 diesel, 2.4L 4G64 petrol and 3.0L 6G72 V6 petrol variants. It uses the standard leaf mounting points, so no drilling or cutting of the chassis is needed. If you're unsure of your exact build date or model code, our team can confirm fitment before you order.
This HD pair is designed primarily to restore correct rear ride height once your Triton is carrying its normal constant load, rather than to deliver a large static lift. Unladen, you'll see a modest rise over a tired factory spring, with the real benefit showing once a canopy, tool boxes or towbar weight is on board. For a specific lift figure for your accessory combination, contact our fitment team.
The kit includes 2 x Toughdog HD rear leaf springs, centre bolts, leaf spring pads, rebound clips and mounting bushes for the eye and shackle ends. U-bolts are sold separately if your existing ones need replacing. Shock absorbers, control arms and airbags are not included and can be sourced separately through our suspension range.
Yes, the HD rating on this leaf spring pair is intended for Triton MK owners who tow regularly or carry a constant rear load such as a camper trailer tow ball weight. The multi-leaf design holds ride height under sustained load better than a worn standard spring. For frequent heavy towing, pairing these with Toughdog shock absorbers helps control rebound at the new load point.
Rear leaf springs don't require a control arm change on the Triton MK, as the rear end runs on leaf springs and shackles rather than control arms. If you're also lifting the front end, front control arm geometry can be affected and an upgrade may be worth considering — see our control arm range for options. Our team can advise based on your full setup.
Yes, wheel alignment is mandatory after fitting new rear leaf springs, as any change in rear ride height alters the vehicle's overall geometry. We recommend an alignment straight after fitment and again after a 500km bedding-in period once the leaves have settled. Skipping alignment can lead to uneven tyre wear.
This listing is the HD (Heavy Duty) rated pair, suited to Triton MK owners running a constant accessory load such as a canopy or tool boxes. If your load is lighter or heavier than typical, contact our team with your accessory list and we can advise whether the HD rate is right or whether a different rate would suit better.
Restoring or slightly raising rear ride height with this pair can improve clearance for a taller tyre, but tyre fitment also depends on your front-end setup, wheel offset and any body modifications. We recommend checking your intended tyre size against your Triton MK's wheel arch clearance and speaking with our team if you're planning a tyre size increase alongside this spring fitment.
This Toughdog HD rear leaf spring pair is covered by a Toughdog manufacturer warranty against manufacturing defects. Keep your proof of purchase and fitment invoice, as these are required for any warranty claim. Our team can talk you through the exact warranty terms and process at the time of purchase.
Yes, this HD leaf spring pair is designed to work as a daily-driven rear spring on the Triton MK, not just for occasional heavy loads. The multi-leaf design keeps the rear settled without the front-end nose-dive that can happen when a standard spring sags under constant weight. Ride comfort unladen will be firmer than a soft factory spring, which is expected with an HD rating.
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