The Toughdog Rear Leaf Springs for Toyota LandCruiser 40 Series deliver legendary durability and load-carrying performance engineered specifically for Australian outback conditions. Designed to handle constant accessory loads while maintaining ride comfort, these premium leaf springs are built from high-grade steel with multi-leaf construction for superior weight distribution. Sold as a pair and backed by Toughdog's Australian warranty, these springs are in stock now with fast dispatch to all Australian locations.
Browse all compatible suspension parts for your Rear Leaf Springs Toyota Landcruiser using our parts finder.
| Make | Model | Series | Years | Engine |
|---|---|---|---|---|
| Toyota | LandCruiser | 40 Series | 1960-1984 | Petrol & Diesel |
Not sure if this fits your vehicle? Use our parts finder for Toyota LandCruiser or contact our suspension experts for fitment confirmation and spring rate advice.
Selecting the correct spring rate is critical for achieving optimal ride quality and component longevity. Choose your spring rate based on your constant accessory load — the weight permanently fitted to your vehicle including bull bars, winches, roof racks, drawer systems, dual batteries, water tanks, rear tire carriers, and long-range fuel tanks. Do not factor in occasional loads such as camping gear, passengers, or towing weight, as this will result in over-sprung suspension causing harsh ride quality and potential damage to other suspension components. Common front constant loads include steel bull bars (30-50kg), winches (30-40kg), and upgraded batteries (20kg). Rear constant loads typically include drawer systems (80-120kg), dual spare wheel carriers (60-80kg), rear bars (25-40kg), and water tank systems (when considering tank weight only, not water). If you're unsure about your total accessory weight, contact our team for a spring rate consultation.
Professional installation by a qualified mechanic or experienced 4WD workshop is strongly recommended for rear leaf spring replacement on the 40 Series LandCruiser. Installation requires vehicle lifting, rear axle support, spring eye bolt removal, and proper torque specifications for all fasteners. A complete wheel alignment is mandatory after installation to ensure correct axle alignment and prevent premature tire wear. Allow a 500km break-in period for springs to settle and bushes to seat properly — you may notice the ride height drop 10-15mm during this period. For a complete suspension overhaul, consider pairing these rear springs with upgraded suspension components including front leaf springs or coil conversion kits, shock absorbers, and steering dampers.
Toughdog is Australia's most trusted suspension brand, with over 65 years of engineering heritage and real-world testing across the harshest outback conditions. Every Toughdog component is designed specifically for Australian vehicles, loads, and driving conditions — from Gibb River Road corrugations to daily tradie workloads. Backed by comprehensive manufacturer warranty and supported by a national network of retailers and installers, Toughdog delivers proven reliability for tourers, tradespeople, and serious off-roaders. Explore the complete Toughdog suspension range for matched front and rear components.
These rear leaf springs are ideal for 40 Series LandCruiser owners who have added constant accessories and need to restore or improve rear-end load capacity and ride height. Perfect for touring enthusiasts carrying drawer systems, dual spares, and water tanks, as well as tradespeople running toolboxes and equipment. If you regularly tow caravans or trailers, these springs reduce rear-end squat and improve stability — for even greater towing performance, consider adding airbag suspension for on-demand load adjustment. Also suited to classic 40 Series restorations where original springs have sagged or fatigued over decades of use.
All Toughdog rear leaf springs are in stock at our Australian warehouse with fast dispatch to all states and territories. Our suspension experts are available to help with spring rate selection, fitment confirmation, and complete suspension package recommendations. Need a complete upgrade? Browse our full lift kit range for matched front and rear suspension systems tailored to your LandCruiser 40 Series and your specific load requirements.
Yes, these Toughdog rear leaf springs are specifically engineered to fit all Toyota LandCruiser 40 Series models produced from 1960 to 1984, including both petrol and diesel engine variants. The springs are designed to match OEM mounting points and geometry for direct bolt-on fitment. If you have made modifications to your 40 Series such as custom spring hangers or altered wheelbases, please contact us to confirm fitment before ordering. Our team can verify compatibility based on your specific vehicle configuration and any aftermarket modifications.
These Toughdog rear leaf springs are primarily designed to restore original ride height and provide improved load-carrying capacity rather than significant lift. Depending on your spring rate selection and constant accessory load, you can expect 0-25mm of lift compared to factory specifications, though actual height will vary based on your vehicle's current condition and load. If worn or sagged original springs are being replaced, you'll notice a substantial improvement in rear-end height and level stance. For more significant lift on your 40 Series, these springs can be combined with front suspension upgrades as part of a complete lift kit package.
This kit includes a pair (2 pieces) of Toughdog rear leaf springs with multi-leaf steel construction, factory powder-coated corrosion protection, spring bushes, and centre bolts. The springs come ready to install with all necessary bushes fitted. Please note that U-bolts, spring shackles, and shock absorbers are not included and may need to be purchased separately depending on your vehicle's current condition and whether you're reusing existing hardware. Front leaf springs or suspension components are also sold separately if you're planning a complete suspension overhaul.
Yes, these Toughdog rear leaf springs are excellent for towing applications when the correct spring rate is selected based on your constant accessory load. The progressive spring rate design maintains rear-end height under trailer tongue weight, reducing squat and improving braking stability and handling during towing. These springs help maintain proper headlight aim and reduce the risk of bottoming out when towing heavier caravans or trailers. For maximum towing versatility and the ability to adjust load support on demand, many customers pair these leaf springs with airbag suspension for even greater control over rear-end height and load management.
Control arm upgrades are not typically required when fitting rear leaf springs to the 40 Series LandCruiser, as this model uses a leaf spring suspension system that does not utilize control arms in the rear. However, you should inspect all related suspension components including spring hangers, shackles, U-bolts, and shock absorbers for wear or damage during installation. If any components show signs of deterioration, rust, or fatigue, they should be replaced at the same time as the springs to ensure optimal performance and safety. The front suspension on 40 Series models also uses leaf springs rather than control arms.
Yes, a complete wheel alignment is mandatory after installing new rear leaf springs on your LandCruiser 40 Series. While rear leaf spring changes primarily affect ride height rather than steering geometry, any change in suspension height can alter axle alignment, camber, and load distribution which impacts tire wear and handling. Professional alignment ensures your axle is correctly positioned and all suspension geometry is within manufacturer specifications. This is especially critical if you're also replacing front suspension components at the same time, as a full four-wheel alignment will optimize tire life, handling, and braking performance.
Yes, Toughdog rear leaf springs are available in multiple spring rates to match your specific constant accessory load. When ordering, you'll need to select the spring rate that corresponds to the permanent weight you carry on your 40 Series, including items like bull bars, drawer systems, rear tire carriers, water tanks, and roof racks. It's critical to select spring rates based only on constant loads — do not factor in occasional loads such as camping gear, passengers, or towing weight, as this will result in overly stiff springs causing harsh ride quality and potential damage to other suspension components. Contact our team if you need help calculating your accessory weight and selecting the appropriate spring rate.
These rear leaf springs can provide 0-25mm of additional ride height depending on spring rate and load, which may allow for slightly larger tires than factory specifications. However, tire clearance on the 40 Series LandCruiser is primarily limited by wheel arch dimensions rather than just suspension height. For significant tire size increases, you'll likely need body modifications such as wheel arch trimming or flares, combined with appropriate wheel offset changes. Before purchasing larger tires, measure your current clearance at full suspension compression and steering lock to ensure adequate clearance for your intended tire size, and consider that tire size increases may require speedo recalibration and can affect gearing.
These Toughdog rear leaf springs are backed by the manufacturer's comprehensive warranty covering defects in materials and workmanship under normal use conditions. Toughdog is renowned for standing behind their products with one of the industry's most respected warranty programs. Warranty coverage requires professional installation, proof of purchase, and use within the product's designed specifications including correct spring rate selection for your load. For specific warranty duration and terms, refer to the warranty documentation included with your springs or contact our team for detailed warranty information before purchase.
Absolutely — these Toughdog rear leaf springs are designed to deliver excellent ride quality for both daily driving and touring applications when the correct spring rate is selected for your constant accessory load. The progressive spring rate design provides comfortable, compliant ride characteristics under normal driving conditions while maintaining stability and control when loaded. Many 40 Series owners use these springs for daily commuting, weekend touring, and everything in between with great results. Ride quality will be noticeably improved compared to worn or sagged factory springs, with reduced body roll, better load carrying, and maintained rear-end height under constant accessory weight.
Best upgrade I've done to the old girl
Had these Toughdog rear leaf springs fitted to my 40 series work ute about three months back and they've been copping an absolute flogging with tools and materials loaded up every day. Ride is heaps better than the sagging originals and she sits level even with half a tonne in the tray. Fitment was spot on and my mechanic had no dramas getting them in.(5)
Perfect Upgrade for My 40 Series Build
Just finished installing these Toughdog rear leaf springs on my 1984 40 Series and took it straight out to the Simpson Desert for a proper shakedown. The difference in load capacity is exactly what was needed for long-range fuel and water, and the ride quality loaded up is surprisingly comfortable even on corrugations. Fitment was spot-on with all the original mounting points, made the install straightforward in the shed. Highly recommend these for anyone serious about remote touring in their 40.(5)
Perfect Upgrade for Our Old Cruiser
Been running these Toughdog rear leaf springs on our 40 Series for six months now and they've completely transformed how the old girl handles when we're loaded up for camping trips. The ride quality is miles better than the sagging originals, especially on corrugated tracks heading out to our favourite spots along the coast. Fitment was spot on and they've held up brilliantly with all the gear, water tanks, and the kids' stuff we chuck in the back.(5)
Add your favourites to cart
Log into or create your Afterpay account, with instant approval decision
Your purchase will be split into 4 payments, payable every 2 weeks
All you need to apply is to have a debit or credit card, to be over 18 years of age, and to be a resident of country offering Afterpay
Late fees and additional eligibility criteria apply. The first payment may be due at the time of purchase
For complete terms visit afterpay.com/terms
