Reviewed by Andrew, 4WD Suspension fitment team
Tough Dog rear coil springs for the Mitsubishi Pajero NM, NP, NS, NT, NW and NX (May 2000 - 2021). Sold per pair, with options for OE height or approximately 40mm of lift and load ratings up to a constant 500kg - select yours from the dropdown based on height and the constant load your Pajero carries. Optional Tough Dog Air Assist coil-insert airbag kit available from the dropdown for adjustable load support.
Tough Dog coils are designed and made in Australia from micro-alloyed spring steel – shot-peened, scragged and load-tested, and hot-formed on precision mandrels so the spring keeps its height and rate after years of heavy loading.
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 assembled Front Struts and front Struts for the Mitsubishi Pajero NM-NX 2000-2021.
Matching rear Foam Cell shocks complete the rear end.
| Wheelbase | Height | Load | Part No |
|---|---|---|---|
| LWB | OE Height | 0-300kg | TDC635S |
| LWB | OE Height | Constant 300kg | TDC635 |
| LWB | Raised 40mm | 0-300kg | TDC635 |
| LWB | Raised 40mm | Constant 300kg | TDC635H |
| LWB | Raised 40mm | Constant 500kg | TDC635HH |
| SWB | Standard | 0-300kg | TDC635S |
| SWB | Standard | Constant 300kg | TDC635 |
Count only permanent constant load (drawers, fridge, long-range tank) - towball weight does not count. Contact us with your setup and we will confirm the right coil.
| Make | Model | Series | Years | Position |
|---|---|---|---|---|
| Mitsubishi | Pajero | NM, NP, NS, NT, NW, NX | May 2000 - 2021 | Rear |
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. Raised springs need shock absorbers with the correct extended length for the new ride height. 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.
New to Pajero suspension? Read our Pajero suspension problems guide.
| Specification | Detail |
|---|---|
| Brand | Tough Dog |
| Type | Rear coil springs |
| Position | Rear axle |
| Sold as | Pair (both sides) |
| Vehicle | Mitsubishi Pajero NM-NX 2000-2021 |
| Lift options | 40 mm |
| Load ratings | 0-300 kg, Constant 300 kg, Constant 500 kg |
| Part numbers | TDC635S, TDC635, TDC635H, TDC635HH |
| 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.
Yes - the same spring family covers both. Use the application table on this page: the same part number can serve different height/load combinations depending on wheelbase (e.g. TDC635 is the LWB constant-300kg OE-height spring AND the LWB raised 0-300kg spring). If unsure, send us your rego and wheelbase.
Yes - Tough Dog advertises rear coils per pair; this listing is priced per pair at 5% below RRP.
Yes - select the Tough Dog Air Assist coil-insert airbag kit from the dropdown. The bags sit inside the rear coils and inflate for towing or heavy loads. Choose OEM Height for standard-height springs or 40mm Lift for raised springs, matching the spring height you selected.
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, Constant 300kg, Constant 500kg. 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 options on this listing are: 40 mm. Lift is measured at ride height with the vehicle's normal load. Raised springs need matching shock absorbers with the correct extended length.
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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