Toughdog rear leaf springs for the Nissan D40 Navara deliver heavy-duty load capacity and enhanced ride quality over the standard springs — engineered for Australian touring, towing, and tradie work. These precision-manufactured leaf springs are designed to restore ride height, eliminate sag under load, and provide superior handling on and off-road. Australian designed, backed by comprehensive warranty, and in stock now for fast dispatch nationwide.
Browse all compatible suspension parts for your Rear Leaf Springs For Nissan D40 Navara using our parts finder.
| Make | Model | Series | Years | Body |
|---|---|---|---|---|
| Nissan | Navara | D40 | 2005-2015 | Dual Cab / King Cab |
Not sure if this fits your vehicle? Use our parts finder for Nissan D40 Navara or contact our suspension experts for personalised advice.
Choosing the correct spring rate depends on your constant rear accessory load. Calculate the total weight of permanently fitted equipment including aluminium or steel canopy, drawer systems, dual battery setups, long-range fuel tanks, spare wheels, toolboxes, and typical touring gear. Common rear accessories for D40 Navara owners include steel canopies (80-120kg), drawer systems (40-80kg), dual battery systems (30kg), water tanks (50kg when full), and rooftop tents (50-80kg). For loads consistently exceeding 200kg, heavy-duty constant load springs are recommended to maintain ride height and handling.
Professional installation by a qualified mechanic or experienced DIY installer is recommended for leaf spring replacement. Full rear suspension disassembly is required including shock absorber removal, U-bolt disconnection, spring eye and shackle pin removal. A four-wheel alignment is mandatory after installation to ensure correct rear axle positioning and steering geometry. Allow a 500km break-in period for springs to settle and bushings to seat properly before final ride height assessment. For vehicles with significant lift or load modifications, consider pairing with upgraded suspension components such as extended brake lines and diff breathers.
Toughdog has earned its reputation as Australia's most trusted 4WD suspension brand through decades of outback testing, engineering excellence, and proven durability. Every Toughdog component is designed to withstand the unique demands of Australian conditions — from corrugated desert tracks to coastal salt exposure. Backed by comprehensive manufacturer warranty and chosen by serious tourers, tradespeople, and 4WD enthusiasts nationwide, Toughdog delivers unmatched value and performance. Explore the complete Toughdog suspension range for your vehicle.
These rear leaf springs are ideal for Nissan D40 Navara owners who regularly carry heavy loads, tow caravans or trailers, or have fitted permanent rear accessories causing rear-end sag. Perfect for tradespeople with toolboxes and equipment, touring families with camping gear and rooftop tents, and anyone seeking to restore proper ride height and handling. For maximum load-carrying flexibility, pair these springs with airbag suspension to fine-tune rear support based on varying load conditions.
All Toughdog suspension components are held in Australian stock for fast dispatch nationwide. Our experienced suspension specialists are available to help you select the perfect setup for your Nissan D40 Navara and driving needs. Need a complete suspension upgrade? Browse our full range of 4WD lift kits and suspension solutions.
These Toughdog rear leaf springs are engineered specifically for Nissan D40 Navara models from 2005 to 2015, fitting both dual cab and king cab body styles. They suit both diesel and petrol engine variants including the YD25 and V9X engines. To confirm exact fitment for your specific model year and configuration, use our online parts finder or contact our team with your VIN number. These springs are designed as direct OEM replacements with no modifications required for standard installations.
These are primarily load-carrying replacement springs designed to restore factory ride height and eliminate sag rather than provide significant lift. Under normal unladen conditions, you may see 0-20mm of height restoration depending on your vehicle's current sag level. The primary benefit is maintaining proper ride height when loaded with typical accessories, toolboxes, or towing equipment. For vehicles seeking additional ground clearance, these springs can be combined with front suspension lift components to create a balanced touring or work setup.
This kit includes a pair (left and right) of Toughdog heavy-duty rear leaf springs complete with centre bolts, spring eye bushings, shackle bushings, high-tensile U-bolts, top plates, and all necessary hardware for installation. The springs come pre-assembled and ready to install. Please note that rear shock absorbers, shackles, bump stops, and brake line extensions are sold separately and should be inspected during installation. We recommend replacing worn shock absorbers at the same time for optimal performance and safety.
Yes, these Toughdog rear leaf springs are specifically engineered for towing applications and heavy-duty use. The progressive multi-leaf design provides excellent load-carrying capacity while maintaining ride comfort when unladen. They significantly reduce rear-end sag when towing caravans, boats, or trailers, improving stability, braking performance, and headlight aim. The enhanced spring rate keeps your D40 Navara level under towball weight, preventing dangerous tail-squat. For frequent towers or those carrying maximum GVM, consider pairing with airbag helpers for adjustable load support.
While these leaf springs can be installed as a standalone upgrade, inspecting and potentially replacing worn rear shock absorbers is highly recommended for balanced performance. Worn shocks cannot properly control the new springs, resulting in poor ride quality and reduced handling. Check your rear shackles, U-bolts, and spring bushings for wear during installation. If your vehicle has done significant kilometers or operates off-road regularly, replacing these components ensures maximum lifespan and performance from your new springs. Extended brake lines may be required if additional lift is achieved.
Yes, a full four-wheel alignment is mandatory after installing new rear leaf springs. Even though rear leaf springs primarily affect ride height rather than steering geometry, any change in rear suspension position can affect the vehicle's thrust angle and overall tracking. Proper alignment ensures even tyre wear, straight highway tracking, and optimal handling characteristics. Most alignment shops can complete this service within an hour. Failing to align your vehicle after suspension work can lead to premature tyre wear and handling issues.
This particular Toughdog leaf spring set is engineered with a specific load rating suitable for the majority of D40 Navara applications including canopies, toolboxes, and moderate towing. If you have unusual load requirements or want to discuss alternative spring rates for extreme payload or specific touring setups, contact our suspension specialists who can recommend the most appropriate spring configuration. Toughdog manufactures various spring rates for different constant load scenarios. Providing details about your typical rear accessories and towing habits helps us recommend the perfect spring rate.
These leaf springs are designed primarily for load carrying and ride height restoration rather than significant lift for tyre clearance. Any modest height gain (0-20mm) may provide marginally improved clearance in the rear wheel arches, but front suspension lift is required for balanced clearance all around. For most D40 Navara owners, 265/75R16 or 265/70R17 tyres fit without major modifications. Larger tyres require front suspension lift, possible body mount chops, and potentially wider offset wheels. Always check clearance under full compression and at full steering lock before committing to larger tyre sizes.
Toughdog rear leaf springs are backed by the manufacturer's comprehensive warranty covering defects in materials and workmanship. The exact warranty period and terms are provided with your purchase and cover normal 4WD use including touring, towing, and moderate off-road driving. Warranty does not cover damage from accidents, incorrect installation, or modifications beyond manufacturer specifications. Keep your proof of purchase and installation records for warranty claims. Toughdog's reputation for standing behind their products means warranty claims are handled professionally and efficiently through authorised dealers.
Absolutely — these Toughdog leaf springs are engineered for excellent daily driving comfort while providing heavy-duty load capacity when needed. The progressive multi-leaf design means the springs ride comfortably when unladen around town, then progressively stiffen as load increases for highway towing or touring stability. Unlike old-school constant-rate springs that ride harshly when empty, modern Toughdog springs deliver a balanced ride across all load conditions. Highway stability, reduced body roll, and improved braking performance are noticeable benefits even during daily commuting and unloaded driving.
Perfect Upgrade for Our Loaded Family Navara
Been running these Toughdog rear leaf springs for about six months now and they've completely transformed how our D40 handles when we're loaded up for weekend camping trips. The kids' gear, rooftop tent, and all our supplies used to have the back sagging pretty badly, but these springs sit level even with a full load. Ride quality is noticeably better on corrugated roads too, which the family definitely appreciates on those long drives out bush.(5)
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