Reviewed by Andrew, 4WD Suspension fitment team
Tough Dog raised rear coil springs (TDC361) for the Jeep Grand Cherokee WG, WJ (June 1999 - 2005), approximately 30mm of lift and rated for 0-300kg loads, sold per pair.
These are Australian-designed and manufactured springs in micro-alloyed spring steel. Each coil is shot-peened, scragged and load-tested before it leaves the factory, and the hot-forming process is what lets them hold their free height under sustained load.
Pick the rate for the weight the vehicle actually carries, not the weight you'd like it to carry – and count only permanent accessories and loads (bar, winch, drawers, long-range tank) when choosing. A spring that's too firm for an unloaded vehicle rides worse than the factory item; one that's too soft sags the moment you load up.
Fit springs in pairs per axle, and book a wheel alignment after any change in ride height. It's also worth checking brake-line slack and bump-stop condition while the suspension is apart.
Doing the whole vehicle at once? We also stock the matching front Shocks and steering Damper for the Jeep Grand Cherokee WG, WJ.
Pair with Tough Dog rear shocks.
| Make | Model | Series | Years |
|---|---|---|---|
| Jeep | Grand Cherokee | WG, WJ | June 1999 - 2005 |
Rear coil springs are changed with the axle supported and the lower shock mount unbolted so the axle can drop far enough to slip the old spring out. Check brake hoses, ABS leads and the breather have enough slack at full droop, especially with raised springs, and fit both sides together. In most states a suspension lift of up to 50 mm is allowed without certification under VSB14; larger lifts can require engineering approval, so check the rules for your state.
Last updated: 10 September 2026
Genuine Tough Dog suspension from an authorised Australian dealer.
| Specification | Detail |
|---|---|
| Brand | Tough Dog |
| Type | Rear coil springs |
| Position | Rear axle |
| Sold as | Pair (both sides) |
| Vehicle | Jeep Grand Cherokee WG, WJ |
| Lift options | 30 mm |
| Part numbers | TDC361 |
| Construction | Designed and made in Australia from micro-alloyed spring steel; shot-peened, scragged and load-tested |
Load ratings refer to permanent extra weight over the axle. Springs do not change the vehicle's GVM or towing capacity.
These suit the following applications: Jeep Grand Cherokee WG, WJ June 1999 - 2005. Check your build date and variant against the fitment table on this page – if you're not certain, contact us with your rego or VIN details and we'll confirm fitment before you order.
Match the rating to the weight the vehicle carries all the time – count only permanent additions (bar, winch, canopy, drawers, long-range tank), not luggage or towball weight. The options on this page cover 0-300kg. If the vehicle is mostly unloaded, stay at the lighter end; going too firm hurts the unladen ride. Still unsure? Send us your setup and we'll confirm the right spring.
The listed price covers both sides – always replace left and right together so the axle is evenly damped and sprung. It's a bolt-in job for a competent home mechanic or any workshop; check bushes, mounts and brake-line slack while everything is apart.
A moderate suspension lift is generally acceptable in most Australian states, but the allowed total lift and whether certification is needed differ between states and change over time – so always confirm with your state’s transport authority before modifying. Our guide explains how the rules work state by state: are lift kits legal in Australia?
Yes. The price covers both Tough Dog springs, one for each side.
If you are changing ride height, yes. Shocks are built for a specific travel range, and a lift moves the axle outside the factory shock's range. If you are replacing springs at standard height, existing shocks in good condition can stay.
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