Toughdog Rear Leaf Springs for Mitsubishi Triton MQ-MR deliver Australian-engineered strength and durability for tradespeople, tourers and tow rig operators demanding reliable load-carrying performance. This matched pair of heavy-duty leaf springs provides enhanced payload capacity and improved suspension articulation while maintaining the refined on-road comfort Triton owners expect. Backed by Toughdog's comprehensive warranty and in stock now for fast Australia-wide dispatch.
Browse all compatible suspension parts for your Rear Leaf Springs - Suits Mitsubishi using our parts finder.
| Make | Model | Series | Years | Configuration |
|---|---|---|---|---|
| Mitsubishi | Triton | MQ | 2015-2018 | All cab configurations |
| Mitsubishi | Triton | MR | 2019-Current | All cab configurations |
Not sure if this fits your vehicle? Contact our suspension experts or check our FAQ page for detailed fitment guidance and spring rate selection advice.
Selecting the correct spring rate depends on your vehicle's constant accessory weight and typical payload requirements. Calculate the combined weight of permanently fitted accessories including aluminium or steel tray, toolboxes, canopy, dual battery systems, long-range fuel tanks, bull bar, winch, and roof racks. For Triton owners who regularly tow caravans or trailers, consider the typical tongue weight (10-15% of trailer mass) as part of your constant rear load. Common rear accessories that affect spring selection include steel ute trays (80-120kg), aluminium canopies (60-100kg), drawer systems (40-80kg), and water tanks for remote touring. If you're unsure which spring rate suits your specific setup, our team can provide personalized recommendations based on your exact accessory list and intended use.
Professional installation by a qualified mechanic or experienced 4WD workshop is strongly recommended to ensure correct fitment, torque specifications, and safety compliance. A full four-wheel alignment is mandatory after installing new leaf springs to prevent premature tyre wear and ensure optimal steering characteristics and handling stability. Allow a 500km break-in period for the springs to settle and bushings to bed in before rechecking torque settings and performing final alignment adjustments. For vehicles receiving significant lift or load capacity upgrades, consider pairing these rear leaf springs with upgraded control arms at the front to maintain balanced suspension geometry and maximize component longevity.
Toughdog has earned its reputation as Australia's number one suspension brand through decades of engineering innovation and real-world testing across the harshest outback conditions. Every Toughdog product is backed by comprehensive warranty coverage and supported by a nationwide network of experienced distributors and installers who understand the unique demands placed on Australian 4WD vehicles. Trusted by tradespeople, grey nomads, and serious off-road tourers nationwide, Toughdog delivers proven reliability when you're thousands of kilometres from the nearest workshop. Explore the complete Toughdog suspension range to build your ideal setup.
These heavy-duty rear leaf springs are ideal for Triton owners who regularly carry significant payload in their tray or tub, tradespeople with permanently fitted toolboxes and equipment, and grey nomads towing caravans across remote touring routes. If you've experienced rear sag with your factory springs or need more consistent load-carrying capability without sacrificing ride comfort, this Toughdog upgrade delivers the perfect balance of strength and versatility. Caravan towers and heavy haulers should also consider adding airbag suspension for on-demand load adjustment and maximum towing stability across varying terrain.
Ready to upgrade your Triton's rear suspension capability? This Toughdog leaf spring pair is in stock now with fast dispatch to all Australian locations, backed by expert technical support and genuine manufacturer warranty. Whether you're building a touring rig, upgrading your work truck, or simply restoring factory ride height after years of heavy use, we have the suspension expertise to help you choose the right components. Browse our full lift kit range to complete your Triton's suspension transformation with matched front and rear components for optimal performance.
Yes, these Toughdog rear leaf springs are specifically engineered to fit all Mitsubishi Triton MQ (2015-2018) and MR (2019-current) models regardless of cab configuration including single cab, extra cab, and dual cab variants. The springs are designed as direct replacements for factory rear leaf packs with no modifications required to mounting points or chassis. If you have a heavily modified Triton or are unsure about compatibility with aftermarket accessories, contact our team with your VIN and modification details for confirmation. These springs work with both factory and lifted front suspension setups.
These Toughdog rear leaf springs are primarily designed as heavy-duty replacement springs focused on increased load capacity rather than significant lift height. Depending on your current factory spring condition and typical payload, you can expect 0-25mm of lift when compared to worn factory springs, with the main benefit being restored ride height under load and elimination of rear sag. The actual lift achieved varies based on constant accessory weight and spring rate selected. For specific lift requirements as part of a complete suspension upgrade, pair these springs with appropriate front lift components to maintain balanced ride height and suspension geometry across your Triton.
This kit includes a matched pair of Toughdog heavy-duty rear leaf springs (left and right side) complete with greasable spring eye bushings, centre bolts, and spring clamps. Installation hardware including spring bushes and basic mounting components are included. U-bolts are typically sold separately as sizing depends on your specific lift height and axle configuration. Some installations may also require new shackles, shackle pins, or spring hangers depending on your current setup and desired modifications. If you're unsure what additional components you need for your specific Triton setup, our team can provide a complete parts list based on your requirements.
Absolutely - these Toughdog rear leaf springs are specifically engineered to handle the increased tongue weight and dynamic loads associated with regular caravan and trailer towing. The progressive spring rate design provides improved load control and reduced rear squat compared to factory springs, which helps maintain proper weight distribution, steering geometry, and headlight aim when towing. This results in more stable and confident towing performance especially on corrugated roads and during emergency maneuvers. For maximum towing capability and on-demand load adjustment, consider adding airbag suspension which works perfectly alongside these upgraded leaf springs to provide infinitely variable load support.
While control arm upgrades are not strictly required when installing replacement rear leaf springs, they are highly recommended if you're also lifting the front of your Triton or if your vehicle has covered significant kilometres. Upgraded control arms with adjustable geometry correction help maintain optimal suspension alignment angles, reduce ball joint and bushing wear, and improve steering feel and tyre life. For Tritons receiving a complete suspension upgrade with front lift components, quality aftermarket control arms are essential to maximize suspension travel and maintain safe handling characteristics. Our team can recommend the appropriate front suspension components to complement these rear leaf springs based on your specific build goals.
Yes, a full four-wheel alignment is absolutely mandatory after installing new rear leaf springs on your Triton. While rear leaf spring replacement primarily affects rear axle position, any change in ride height or suspension geometry can influence overall vehicle alignment including toe, thrust angle, and front axle settings. Proper alignment ensures even tyre wear, optimal fuel economy, predictable handling characteristics, and maximum component life. Book your alignment with a workshop that has experience with modified 4WDs and can accommodate lifted vehicles. Most alignment shops recommend rechecking alignment after the initial 500km break-in period once the springs have settled to their final ride height.
The Toughdog rear leaf springs for Triton MQ-MR are engineered with a specific spring rate optimized for the most common heavy-duty applications including constant tray/canopy weight and regular towing. While this particular product listing represents the standard heavy-duty configuration, Toughdog does offer various spring rate options for different load scenarios. If you have unusually heavy constant loads or specialized requirements, contact our suspension experts who can verify if alternative spring rates are available for your application. We'll need details about your permanent accessory weight, typical payload, and towing frequency to recommend the ideal spring specification for your Triton's specific use case.
These rear leaf springs primarily improve load capacity rather than providing significant lift, so tyre clearance gains will be minimal compared to worn factory springs. The slight height increase (0-25mm) may allow you to fit marginally larger tyres, but substantial clearance for significantly oversized tyres requires a complete suspension lift kit including front lift components, longer shocks, and potentially body modifications. For most Triton MQ-MR owners, these springs combined with appropriate front lift components will comfortably accommodate tyres up to 32 inches diameter. If aggressive tyre sizing is your primary goal, discuss your complete suspension build with our team to ensure all components work together to provide adequate clearance without compromising ride quality or component longevity.
These Toughdog rear leaf springs are backed by Toughdog's comprehensive manufacturer warranty covering defects in materials and workmanship under normal use conditions. Warranty duration and specific terms vary by component type and application, but Toughdog stands behind their products with some of the strongest warranty coverage in the Australian 4WD suspension industry. To ensure your warranty remains valid, professional installation is required with all torque specifications followed correctly, and appropriate break-in procedures must be observed. Keep your purchase receipt and installation records as proof of purchase and proper fitment. For specific warranty duration and claim procedures, refer to the warranty card included with your springs or contact our team for detailed information.
Yes, these Toughdog rear leaf springs are perfectly suited to daily driving and provide excellent on-road manners while delivering heavy-duty load capacity when needed. The progressive spring rate design means the springs ride relatively comfortably when unladen for daily commuting, then progressively firm up as payload increases to maintain control and prevent excessive sag. This versatility makes them ideal for dual-purpose vehicles that serve as daily drivers during the week and work trucks or touring rigs on weekends. Expect a slightly firmer ride than factory springs when unladen, but still far more refined than traditional constant-rate heavy-duty springs. When paired with quality shock absorbers matched to the spring rates, these Toughdog springs deliver thousands of kilometres of reliable service across all driving conditions.
Perfect upgrade for our family camping adventures
Fitted these Toughdog rear leaf springs to my MR Triton before our last trip down to Wilsons Prom and the difference is night and day. The rear end sits level now even with the camper trailer, roof tent, and all the kids' gear loaded up. Ride quality on corrugated roads is noticeably better too, and installation was straightforward enough for a weekend DIY job.(5)
Perfect upgrade for my work Triton
Had these rear leaf springs fitted to my MR Triton about three months back and they've handled everything I've thrown at them. Carry tools and materials every day for work, plus the occasional weekend trip down the high country, and the ride quality is miles better than the sagging factory setup. Fitment was spot on and install was straightforward according to my mechanic.(5)
Perfect upgrade for our family camping adventures
These Toughdog rear leaf springs have made a massive difference to how our MR Triton handles when loaded up with the camper trailer and kids' gear. The ride quality is noticeably better than stock, especially on corrugated dirt roads heading out bush. Fitment was spot on and they've been carrying our typical camping load without any sag. Really happy with the quality for the price point.(5)
Perfect upgrade for our loaded Triton
Been running these Toughdog rear leaf springs for about six months now and they've completely transformed how the MR handles when we're loaded up for weekend camping trips. The back end no longer sags with the camper trailer, roof tent, and all the family gear aboard. Ride quality is noticeably better on corrugated tracks too, and fitment was spot-on which made installation straightforward.(5)
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