Toughdog Rear Leaf Springs for Toyota LandCruiser 45 Series deliver legendary durability and load-carrying performance engineered for Australia's toughest conditions. Designed specifically for the iconic 45 Series platform, these heavy-duty leaf springs provide superior load capacity, ride comfort, and long-term reliability whether you're touring the outback, hauling equipment, or restoring a classic cruiser. Backed by Toughdog's Australian testing program and full manufacturer warranty, with fast Australia-wide dispatch from local stock.
Browse all compatible suspension parts for your Rear Leaf Springs Toyota Landcruiser using our parts finder.
| Make | Model | Series | Years | Position |
|---|---|---|---|---|
| Toyota | LandCruiser | 45 Series | 1960-1984 | Rear Axle |
Not sure if this fits your vehicle? Contact our suspension experts or check our FAQ page for detailed compatibility information and spring rate selection assistance.
Selecting the correct spring rate is critical for optimal performance and ride quality. Base your selection on constant load only — the accessories and equipment permanently fitted to your vehicle. Constant load items include bull bars, rear bars, dual battery systems, long-range fuel tanks, roof racks with permanent loads, drawer systems, second spare wheels, and touring equipment that remains fitted year-round. Occasional loads such as passengers, camping gear, water tanks, and towing do not qualify as constant load and should not be factored into spring rate selection. Selecting excessively heavy spring rates will result in harsh ride quality, premature wear of other suspension components including bushes and shock absorbers, and potentially dangerous handling characteristics.
Professional installation by a qualified 4WD suspension specialist is strongly recommended for leaf spring replacement. Installation requires proper spring compression equipment, torque wrenches, and safety procedures to prevent injury. A full four-wheel alignment is mandatory after installation to restore correct chassis geometry, camber, caster, and toe settings. All suspension components should be inspected during installation including spring bushes, shackles, U-bolts, and shock absorbers — worn components should be replaced simultaneously. A 500km break-in period is required for springs to settle and achieve final ride height. Consider pairing these springs with upgraded suspension components including heavy-duty shackles, greaseable bushes, and quality shock absorbers for optimal performance and longevity.
Toughdog has earned its reputation as Australia's number one 4WD suspension brand through decades of engineering excellence, real-world outback testing, and unwavering commitment to quality. Every Toughdog product is designed specifically for Australian conditions and validated through extensive testing across the harshest terrains our continent offers. Trusted by touring families, remote area workers, agricultural operators, and professional expedition teams, Toughdog delivers the durability and performance required when failure isn't an option. Explore the complete Toughdog suspension range including lift kits, shock absorbers, coil springs, and steering components engineered to work together as a complete system.
These rear leaf springs are ideal for Toyota LandCruiser 45 Series owners undertaking vehicle restoration, upgrading worn suspension, or enhancing load-carrying capability. Perfect for touring enthusiasts carrying extended camping equipment, tradespeople requiring reliable heavy-duty performance, caravan and trailer towers needing improved stability, and collectors maintaining classic cruisers to original specifications. If you regularly carry heavy loads or tow frequently, also consider airbag suspension as a complementary upgrade to provide on-demand load support and adjustability without compromising unladen ride quality.
All Toughdog products are held in Australian stock for fast dispatch nationwide. Our suspension specialists provide expert technical support to ensure you select the correct components for your application. Need help with all suspension parts for the Toyota LandCruiser? Contact our team for personalized recommendations and complete suspension system packages tailored to your vehicle and intended use.
Yes, these Toughdog rear leaf springs are engineered specifically for the Toyota LandCruiser 45 Series produced from 1960 to 1984. This includes all 45 Series variants including the FJ45, HJ45, and BJ45 models across ute, troop carrier, and wagon body styles. The springs are designed to match the original mounting points and chassis specifications without requiring modifications. If you're unsure about your specific variant or have made chassis modifications, our suspension specialists can confirm fitment compatibility before you order.
These are replacement leaf springs designed primarily to restore original ride height rather than provide significant lift. If your current springs are worn or sagging, these Toughdog springs will restore your vehicle to factory ride height specifications, which may appear as a lift compared to your current sagging suspension. The actual height restoration depends on the condition of your existing springs and the constant load you're carrying. For significant lift requirements, consider a complete lift kit that includes springs, shocks, and chassis components engineered to work together safely.
This kit includes two Toughdog heavy-duty rear leaf springs with multi-leaf progressive rate design, heat-treated spring steel construction, and corrosion-resistant coating. The springs are supplied as a matched pair for rear axle installation. U-bolts, spring bushes, shackles, mounting pins, and hardware are sold separately as these components vary based on your specific vehicle configuration and whether you're replacing worn items or performing a complete rebuild. Most installers recommend replacing all associated hardware during spring replacement to ensure optimal performance and safety.
Yes, these Toughdog leaf springs are engineered to handle towing applications including caravans, trailers, and campers when properly matched to your constant load requirements. The progressive rate design maintains level ride height under towing loads and reduces tail squat that can affect handling, braking, and headlight aim. However, you must select the appropriate spring rate based on your constant accessory load, not occasional towing weight. For maximum towing versatility and adjustability, many towers also install airbag suspension systems that work in conjunction with leaf springs to provide on-demand load support.
While not mandatory, it's highly recommended to inspect and potentially replace spring bushes, shackles, U-bolts, and shock absorbers during leaf spring installation. Worn bushes and shackles will compromise the performance of new springs and cause premature wear. If your shock absorbers are original or have high mileage, this is the ideal time to upgrade to quality units matched to the new spring rates. Many installers also recommend replacing U-bolts rather than reusing old ones to ensure proper clamping force and safety. This ensures all components work together optimally for maximum performance and longevity.
Yes, a full four-wheel alignment is absolutely mandatory after leaf spring replacement. New springs will change your vehicle's ride height and chassis geometry, directly affecting wheel alignment angles including camber, caster, and toe settings. Driving with incorrect alignment causes rapid and uneven tyre wear, poor handling, wandering, and potentially dangerous driving characteristics. Professional alignment should be performed after installation and after the initial 500km settling period when the springs have compressed to their final operating height. This ensures optimal handling, tyre life, and safe operation.
Spring rate selection must be based exclusively on constant load — the permanent accessories and equipment fitted to your vehicle year-round. Calculate the weight of bull bars, rear bars, dual batteries, long-range fuel tanks, drawer systems, roof racks with permanent loads, and touring equipment that remains installed. Do not include occasional loads such as passengers, camping gear, water, food, or towing capacity in this calculation. Selecting springs that are too heavy for your actual constant load will result in harsh ride quality, reduced articulation, premature component wear, and potentially dangerous handling. When in doubt, consult with our suspension specialists who can recommend the optimal spring rate based on your specific setup.
These are replacement springs designed to restore original ride height rather than provide significant lift for larger tyres. The tyre clearance you achieve depends on whether your current springs are sagging and how much height is restored. Generally, tyre size increases should be based on complete lift kit installations that raise the entire chassis and provide proper clearance at full suspension compression and steering lock. If larger tyres are your goal, consider a complete suspension system that includes appropriate lift height, extended shock absorbers, and potentially chassis modifications to ensure safe clearance under all driving conditions.
Toughdog provides comprehensive manufacturer warranty coverage on these leaf springs against defects in materials and workmanship. The specific warranty period and terms are provided with your purchase documentation and cover manufacturing defects, premature failure, and material faults under normal operating conditions. Warranty does not cover damage from accidents, incorrect installation, overloading beyond rated capacity, or wear from normal use. To maintain warranty validity, professional installation is recommended with proper torque specifications followed, and you should retain all proof of purchase documentation. Contact us for complete warranty details specific to this product.
Absolutely, these Toughdog leaf springs are engineered to provide excellent ride quality for daily driving, highway cruising, and urban use while maintaining the load capacity required for touring and work applications. The progressive rate design ensures comfortable, compliant ride characteristics when unloaded or lightly loaded, making them ideal for daily driving duties. As load increases, the springs progressively stiffen to provide the support needed without the constant harshness of fixed heavy-duty springs. This makes them an excellent choice for vehicles that serve dual purposes as both daily drivers and weekend touring or work vehicles, providing versatility without compromise.
Perfect Upgrade for My Old Cruiser
Been running these Toughdog rear leaf springs on my 45 for about six months now, loaded up with tools and gear every day for work. The difference in load handling is night and day compared to the old sagged originals, and they've handled a few weekend trips down rough forestry tracks without any dramas. Fitment was spot on and install was straightforward enough. Really happy with the ride quality even when I'm running empty.(5)
Sorted My Old 45 Out Perfectly
Been running these Toughdog rear leaf springs on my 45 for about six months now, including a proper thrashing through the Simpson and some rocky hill country out west. The ride quality is miles better than the old sagging originals, and they're handling the camper trailer and jerry cans without any dramas. Fitment was spot on and installation was straightforward enough to do in the shed over a weekend.(5)
Perfect Upgrade for Our Old Troopie
These Toughdog rear leaf springs have completely transformed our '78 Troopy for family camping trips. The ride quality is noticeably smoother on corrugated tracks, and they handle the extra weight of our camping gear without any droop. Fitment was spot-on and installation was straightforward for our local mechanic. Well worth the investment for anyone serious about touring in their 45 series.(5)
Perfect Springs for My Work 45
Been running these Toughdog rear leaf springs on my 45 series for about six months now, carting tools and materials around Sydney every day. The ride quality is noticeably better than the old worn-out stockers, and they handle the constant weight without sagging. Fitment was spot-on too, which saved me time at the workshop. Solid upgrade for anyone using their Cruiser as a genuine work truck.(5)
Perfect Upgrade for My Old 45
Been running these Toughdog rear leaf springs for about 8 months now, including a trip through the Simpson and regular runs out to the Flinders. The improvement in load handling with my rear bar, jerry cans and recovery gear is night and day compared to the sagging originals. Ride quality is firm but controlled, even on corrugations, and they've held up perfectly to everything I've thrown at them.(5)
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