Toughdog rear coil springs for the Jeep Grand Cherokee WG/WJ deliver proven heavy-duty performance with precision-engineered spring rates tailored to your constant load requirements. Manufactured to exacting Australian standards, these premium coil springs restore ride height, enhance payload capacity, and maintain superior on-road comfort across highway and outback terrain. Backed by Toughdog's comprehensive warranty and in stock now for fast Australia-wide dispatch.
Browse all compatible suspension parts for your Rear Coil Springs Suits - Jeep Grand using our parts finder.
| Make | Model | Series | Years | Position |
|---|---|---|---|---|
| Jeep | Grand Cherokee | WG / WJ | 1999-2005 | Rear Axle |
Not sure if this fits your vehicle or which spring rate to choose? View all suspension parts for the Jeep Grand Cherokee or check our FAQ page for detailed guidance.
Selecting the correct spring rate is critical for both ride quality and safety. Choose your spring rate based on constant load only — this means accessories and equipment permanently fitted to your Grand Cherokee, not occasional loads like passengers, camping gear loaded for weekend trips, or trailers you only tow occasionally.
Common constant rear loads include: permanent drawer systems, dual battery setups, long-range auxiliary fuel tanks, fixed toolboxes, bull bars (if weight transfers rearward), permanently mounted spare wheels, roof racks (the rack itself, not cargo), winches, and fixed recovery gear storage. If you regularly tow a caravan or trailer, consider airbag suspension instead, which allows on-demand adjustment for variable towing loads without compromising unladen ride quality.
Ordering springs with excessive spring rate for occasional loads will result in harsh, uncomfortable ride quality, accelerated wear on suspension components like bushings and shock absorbers, and potential handling issues when unladen. When in doubt, choose the lighter spring rate or contact our team for personalised guidance based on your exact setup.
Professional installation by a qualified 4WD suspension technician is strongly recommended for coil spring replacement. Installation requires specialised spring compressor tools and safety equipment, as coil springs store significant potential energy that can cause serious injury if mishandled. While experienced DIY enthusiasts with proper tools may undertake this work, ensure all safety protocols are followed and springs are compressed gradually and evenly.
A four-wheel alignment is mandatory after installing new rear coil springs, as any change in ride height affects steering geometry, camber, and toe settings — even though springs don't directly alter these angles, the suspension position change will. Allow a 500km break-in period for springs to settle and seat properly before final height measurements or alignment adjustments.
Consider inspecting and replacing worn suspension bushings, shock absorbers, and sway bar links during installation, as fatigued components will compromise the performance of your new springs. For vehicles with significant lift or heavy-duty use, upgrading to heavy-duty control arms will maximise suspension geometry and longevity.
Toughdog has earned its reputation as Australia's most trusted 4WD suspension brand through decades of outback testing, real-world touring feedback, and continuous engineering refinement. Every Toughdog coil spring is manufactured to exacting specifications and tested across the harshest Australian conditions — from Gibb River Road corrugations to Cape York creek crossings. Toughdog suspension is the choice of professional tour operators, tradespeople, and serious tourers who demand reliability when far from help. Explore the complete Toughdog suspension range for matched shocks, springs, and complete lift systems.
These rear coil springs are ideal for Jeep Grand Cherokee WG/WJ owners who have noticed rear sag from worn factory springs, those carrying constant accessories like drawer systems and dual batteries, or drivers seeking to restore proper suspension geometry after years of use. They're equally suited to daily drivers wanting OEM-plus ride quality and weekend tourers heading into remote regions with loaded gear.
If you regularly tow caravans or boat trailers with variable loads, consider supplementing these springs with airbag suspension, which provides on-demand adjustment for changing loads while maintaining excellent unladen comfort — the perfect combination for versatile touring setups.
Ready to restore your Jeep Grand Cherokee's suspension performance? These Toughdog rear coil springs are in stock now with fast dispatch across Australia. Need help choosing the right spring rate or want to build a complete suspension package? Our team of suspension specialists is here to help — browse our full lift kit range or get in touch for personalised advice based on your exact vehicle setup and touring needs.
These Toughdog rear coil springs are specifically engineered for Jeep Grand Cherokee WG and WJ series models produced between 1999 and 2005. They're designed as direct OEM replacements using factory mounting points and spring seats, requiring no modifications for standard applications. The springs fit both petrol and diesel variants within this chassis range. To confirm exact fitment for your specific year and trim level, check your VIN against our fitment guide or contact our team with your vehicle details for personalised confirmation.
These Toughdog rear coil springs are primarily designed to restore original ride height rather than provide significant lift, making them ideal for correcting rear sag from worn factory springs or constant accessory loads. Depending on your vehicle's current condition and selected spring rate, you can expect 0-25mm of height restoration when replacing worn springs, bringing your Grand Cherokee back to proper suspension geometry. If you're seeking substantial lift for larger tyres or off-road clearance, consider a complete lift kit that includes matched front and rear components. The actual ride height achieved depends on spring rate selection and your vehicle's constant load configuration.
This kit includes a pair (2 springs) of Toughdog heavy-duty rear coil springs with precision-wound construction, shot-peened treatment, and corrosion-resistant powder coat finish. The springs come with an installation and safety guide. This is a springs-only package, so you'll need to source shock absorbers, spring seats, bushings, and mounting hardware separately if replacements are needed. Most installations can reuse existing hardware if in good condition. For a complete rear suspension upgrade, consider pairing these springs with matched Toughdog shock absorbers and inspecting all bushings and mounting components during installation.
While these Toughdog rear coil springs offer enhanced load capacity over worn factory springs and can support moderate towing duties, they're designed for constant loads rather than variable towing applications. If you regularly tow caravans or heavy trailers, the springs alone may not provide sufficient adjustability for the dramatic weight changes between laden and unladen conditions. For dedicated towing applications, we strongly recommend supplementing these springs with airbag suspension, which allows you to inflate for towing stability and deflate for comfortable unladen driving. This combination delivers the best of both worlds — the foundation support of upgraded coil springs with the adjustability of airbags for variable loads.
For Grand Cherokee WG/WJ models receiving these rear coil springs as a like-for-like replacement with minimal height change, factory control arms are typically adequate and no upgrade is necessary. However, if your existing control arm bushings are worn, cracked, or perished, this is the ideal time to replace them since the suspension will already be disassembled. If you're combining these springs with front lift components or seeking improved articulation and durability for serious off-road use, upgraded heavy-duty control arms with improved geometry and heavy-duty bushings will maximise suspension performance and longevity. Inspect your control arms during installation and replace if bushings show deterioration.
Yes, a full four-wheel alignment is mandatory after installing new rear coil springs, even though the rear axle doesn't have adjustable alignment on most Grand Cherokee WG/WJ models. Any change in rear ride height affects the vehicle's overall suspension geometry, weight distribution, and steering characteristics, which can alter front-end alignment settings including camber, caster, and toe. Professional alignment ensures your vehicle tracks straight, tyres wear evenly, and handling remains predictable. Most alignment shops recommend waiting until after the 500km break-in period for final alignment checks, allowing springs to fully settle into their operational height before making precise adjustments.
Yes, Toughdog manufactures these rear coil springs in multiple spring rate options to precisely match your vehicle's constant accessory load. During checkout, you'll select the appropriate spring rate based on permanently fitted equipment such as drawer systems, dual batteries, auxiliary fuel tanks, and fixed recovery gear. It's critical to select spring rate based only on constant loads, not occasional passengers, camping gear, or towing loads. Selecting an unnecessarily heavy spring rate will result in harsh ride quality when unladen, while too-light springs will sag and bottom out under load. Our team can help you calculate your constant load and recommend the optimal spring rate for your specific Grand Cherokee configuration.
Since these Toughdog rear coil springs are designed primarily for height restoration rather than significant lift, they provide minimal additional tyre clearance beyond returning your Grand Cherokee to original ride height. Most WG/WJ Grand Cherokees can accommodate modestly larger tyres (typically 1-2 sizes up from factory) without rubbing, but this depends more on wheel offset, suspension travel, and steering lock than rear spring height alone. If your goal is fitting substantially larger tyres, you'll need a complete lift kit with matched front and rear components to provide uniform clearance. For modest tyre size increases with these springs, test-fit and check clearance at full compression and steering lock before committing to new wheels and tyres.
Toughdog backs these rear coil springs with a comprehensive warranty against manufacturing defects when purchased from authorised retailers like 4WD Suspension Australia and installed by qualified technicians. The warranty covers defects in materials and workmanship but does not cover damage from incorrect installation, overloading beyond specified capacity, collision damage, or use outside intended operating parameters. Warranty claims require proof of purchase and professional installation documentation. To ensure full warranty protection, have springs fitted by a licensed suspension specialist, select the correct spring rate for your constant load, and avoid exceeding manufacturer load ratings. Retain all installation records and purchase receipts for warranty purposes.
Absolutely — these Toughdog rear coil springs are engineered to deliver excellent on-road comfort for daily driving while providing the durability needed for loaded touring and outback travel. The progressive-wind design offers soft initial compression for comfortable unladen driving around town, then progressively firms under load for highway stability when carrying gear or passengers. Unlike some heavy-duty springs that compromise ride quality for load capacity, Toughdog's multi-stage design maintains the compliance needed for comfortable daily use while delivering payload capacity when required. When matched with quality shock absorbers and properly selected spring rates, these springs provide a refined ride suitable for everything from urban commuting to transcontinental touring across Australia's varied road conditions.
Perfect Upgrade for My Work Grand Cherokee
Been running these Toughdog coil springs on my WJ for about 6 months now, carrying tools and equipment daily around Sydney and out to regional sites. The ride quality is noticeably better than the old worn-out stockies, even with a full load of gear in the back. Installation was straightforward and they've handled everything I've thrown at them including a few weekend trips down to the south coast tracks.(5)
Proper Springs for Serious Outback Work
Been running these Toughdog rear coils on my WJ for about 8 months now, including trips through the Simpson and Flinders Ranges with a full load of recovery gear and camping equipment. The ride quality is noticeably better than stock even when fully loaded, and they've handled some seriously corrugated tracks without any sag or drama. Worth every cent if you're planning to actually use your Grand Cherokee the way it was meant to be used.(5)
Perfect Upgrade for Our Loaded Grand Cherokee
These Toughdog rear coils have completely transformed how our WJ handles when we're loaded up for weekend camping trips. The difference is night and day - no more sagging with the tent, chairs, and all the kids' gear in the back. Ride quality is actually better than stock, and they were surprisingly straightforward to fit. Well worth the investment for anyone who regularly tours with a full load.(5)
Perfect for Our Loaded Grand Cherokee
These Toughdog rear coils have completely transformed how our WJ handles when we're loaded up for weekend trips away. Previously the rear end would sag noticeably with the camper trailer, swags, and all the family gear, but now it sits level and the ride quality is actually better than stock. Fitted them ourselves in the driveway without any dramas, and they've been brilliant through the Flinders and out to Birdsville over the past six months.(5)
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