Toughdog Rear Coil Springs for Jeep JK Wrangler deliver race-proven heavy-duty performance engineered for Australian conditions — offering superior load-carrying capacity, enhanced ride height, and the durability that's made Toughdog Australia's most trusted suspension brand. Designed specifically for the JK Wrangler platform, these premium coil springs integrate seamlessly with OEM and aftermarket suspension setups, providing the foundation for improved handling, towing stability, and off-road capability. Backed by Australian engineering, rigorous outback testing, and comprehensive manufacturer warranty, these springs are in stock now with fast dispatch Australia-wide.
Browse all compatible suspension parts for your Rear Coil Springs​​​​​​​ - Suits Jeep using our parts finder.
| Make | Model | Series | Years | Engine |
|---|---|---|---|---|
| Jeep | Wrangler | JK | 2007-2011 | 3.8L Petrol V6 |
| Jeep | Wrangler | JK | 2011-2018 | 3.6L Pentastar V6 |
| Jeep | Wrangler | JK | 2007-2018 | 2.8L CRD Diesel |
Not sure if this fits your vehicle? Contact our suspension experts or check our FAQ page.
Choosing the right rear spring rate comes down to what stays bolted to the vehicle day to day. A JK running a rear bar, swing-out tyre carrier, dual battery tray and drawer system needs more constant support than a stock-weight tourer, so tell us your accessory load before ordering. Common items that affect selection include rear bull bars, water tanks, long-range fuel tanks, drawer systems, dual batteries and camper trailer tow-ball weight.
Fitment is straightforward for an experienced DIY installer with basic hand tools and a spring compressor, though we recommend a workshop install if you're not confident working under load. A wheel alignment is mandatory after fitting to bring camber, caster and toe back within spec at the new ride height. Allow a 500km bedding-in period for the springs to settle before final alignment if possible. Pairing this upgrade with upgraded control arms helps maintain correct driveshaft and axle geometry once the rear end sits higher.
Toughdog has built its name on suspension developed and tested under Australian conditions rather than adapted from overseas specs. These rear coil springs are backed by a manufacturer warranty and are a common upgrade among 4WD tourers and tradespeople running loaded utes and wagons. You can view the full Toughdog range for matching shocks, leaf springs and control arms.
This kit suits JK Wrangler owners who carry constant weight - tradespeople with tool storage, tourers running camping gear, and drivers towing a camper or small caravan. If your rear end still sags under a heavier constant load even with upgraded coils, our airbag suspension range is worth considering as a secondary load-levelling option.
These Toughdog Heavy Duty Rear Coil Springs are in stock in Australia now with fast dispatch and fitment support from our team. Browse our full lift kit range if you're planning a front and rear upgrade together.
New to Jeep suspension? Read our guide to common Jeep suspension problems and how to fix them.
Yes, these Toughdog rear coil springs are designed specifically for the Jeep JK Wrangler built between 2007 and 2018, covering both the 3.8L, 3.6L Pentastar petrol and 2.8L CRD diesel variants sold in Australia. They are a direct bolt-in replacement for the factory rear coil, so no bracket modification is needed. If you're unsure about your exact build spec, use our parts finder for the Wrangler or contact our team before ordering.
This spring gives approximately a 2" increase in rear ride height over the standard JK Wrangler coil spring. Actual lift will vary slightly depending on your vehicle's existing accessory load and the condition of your current suspension. Pairing it with a matching front spring keeps the stance level front to rear.
The kit includes 2 x Toughdog Heavy Duty Rear Coil Springs, manufactured from shot-peened and powder-coated spring steel. Shock absorbers, control arms and bump stops are not included and are sold separately. See the Kit Includes list on this page for the full component breakdown.
Yes, the progressive spring rate is built to support constant accessory loads such as rear bar work, drawers and long-range fuel tanks, which makes it a sound choice for owners towing a camper trailer or small caravan. For heavier or variable towing loads, our airbag suspension can be added for extra load levelling. Tell us your typical tow-ball weight and we can confirm if this spring rate suits your setup.
It's not mandatory for a 2" rear lift, but upgrading to adjustable control arms helps correct pinion angle and axle geometry once the rear sits higher. Factory rubber-bushed arms can bind at increased ride height over time. We recommend it if you're also running a front lift or carrying heavier constant loads.
Yes, a wheel alignment is mandatory after fitting these springs to bring camber, caster and toe back within factory specification. Skipping alignment will cause uneven tyre wear and can affect handling. We suggest allowing a 500km bedding-in period before the final alignment where possible.
Toughdog offers this rear coil in a heavy duty rate to suit JK Wranglers carrying rear bar work, drawers and touring gear. If your accessory load is lighter or heavier than average, contact our team with your constant load details and we'll confirm whether this is the right rate or if an alternative Toughdog spring suits better.
A 2" rear lift typically allows for a modest increase in tyre diameter over stock, though exact clearance depends on your wheel offset, tyre width and whether the front is lifted to match. We recommend confirming your target tyre size with our team so we can advise on rubbing points before you buy.
These Toughdog rear coil springs are covered by the Toughdog manufacturer warranty against manufacturing defects. Warranty terms apply to normal on-road and off-road use consistent with the product's intended purpose. Contact our team for the specific warranty period and claim process.
Yes, this heavy duty rear coil is designed to keep a comfortable ride at unladen weight while still supporting the vehicle once loaded for touring or work use. Many JK owners run these year-round as a daily driver and weekend tow vehicle. Matching shock absorbers help keep damping balanced across both conditions.
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