Toughdog Heavy Duty Rear Leaf Springs suit the Holden Colorado RG built from 2012 onwards and replace the factory leaf pack with a multi-leaf design engineered for constant accessory loads. This heavy-duty pair holds ride height under a bullbar, canopy, tray, or tow bar where standard springs sag over time, and works well alongside upgraded shock absorbers to restore proper damping control at the rear. Sold as a matched pair (SKU 5093) with Toughdog manufacturer warranty. In stock in Australia now, with fitment support from our suspension team.
Browse all compatible suspension parts for your Rear Leaf Springs Holden Colorado Rg using our parts finder.
| Make | Model | Series | Years | Engine |
|---|---|---|---|---|
| Holden | Colorado | RG — Single Cab | 2012-ON | 2.5L & 2.8L Turbo Diesel |
| Holden | Colorado | RG — Space Cab | 2012-ON | 2.5L & 2.8L Turbo Diesel |
| Holden | Colorado | RG — Crew Cab | 2012-ON | 2.5L & 2.8L Turbo Diesel |
Not sure if this fits your vehicle? Contact our suspension experts or check our FAQ page.
Choosing the right rear spring comes down to what's permanently fitted to your Colorado RG tray or chassis. A heavy-duty pack like this one suits utes carrying a steel canopy, toolboxes, a bullbar and winch, a long-range fuel tank, dual batteries, or a tow bar used regularly for a caravan or trailer. If your Colorado RG runs mostly unladen or with light accessories only, a standard-duty spring may ride more comfortably — talk to our team before ordering if you're unsure which pack matches your setup.
Fitting rear leaf springs is a job for an experienced DIY installer with the right jacking and safety equipment, or a professional workshop familiar with leaf-sprung utes. Wheel alignment is mandatory after installation since ride height and axle angles change slightly with a new spring pack. Allow a 500km bedding-in period before final torque checks on U-bolts and shackle bolts. If you're also addressing the front end, have a look at our control arm upgrades to keep suspension geometry correct across the vehicle.
Toughdog has supplied 4WD and ute suspension components to the Australian market for decades, with leaf springs and shock absorbers developed for local load and towing conditions rather than adapted from overseas specs. Every Toughdog leaf spring pack is backed by the brand's standard manufacturer warranty, and stock is held locally for fast dispatch. You can view the full Toughdog range to see matching shocks, coils and hardware for your Colorado RG.
This pack suits Colorado RG owners running a fitted canopy, toolboxes, or a bullbar and winch combination that loads the rear axle daily — tradespeople and grey nomads both fall into this bracket. If you're towing a caravan or box trailer regularly and want load support without changing your spring pack, our airbag suspension options are worth comparing alongside a heavy-duty leaf spring upgrade.
This Toughdog rear leaf spring pair is in stock in Australia now, with our team on hand to confirm fitment for your specific Colorado RG before you order. Browse our full lift kit range if you're planning a larger suspension upgrade alongside these springs.
Yes, this Toughdog heavy duty rear leaf spring pair is built to fit the Holden Colorado RG from 2012 onwards, across Single Cab, Space Cab and Crew Cab variants. It's designed as a direct replacement using the factory-style shackle and U-bolt mounting points. If you're fitting it to a modified chassis or with non-standard accessories already installed, contact our team first to confirm compatibility.
This is a heavy-duty leaf spring pair, not a raised lift kit, so it's designed to maintain the Colorado RG's factory ride height under constant load rather than lift the vehicle. Where standard springs sag with a canopy, bullbar or tow bar fitted, this pack holds the correct height. If you want additional ride height as well as load support, ask our team about raised leaf spring options or browse our full lift kit range.
You receive 2 x Toughdog heavy duty rear leaf spring packs, centre bolts, spring eye bushes, and the relevant rebound clips fitted to the pack. A fitment and torque specification sheet is included. U-bolts and shackles are sold separately, so check your existing hardware condition before fitting.
Yes, this heavy-duty pack is specifically intended for Colorado RG owners who tow regularly or run a permanent tow bar and ball weight. It holds the rear end level under sustained load rather than sagging, which keeps headlight aim and handling more predictable while towing. For heavier or variable towing loads, pairing it with airbag suspension gives you adjustable extra support when needed.
Rear leaf springs don't require a control arm change on the Colorado RG, since control arms are a front-end component. If you're also upgrading the front suspension for a lift or improved geometry, our control arm range is worth reviewing at the same time so the whole vehicle sits and handles correctly.
Yes, wheel alignment is mandatory after fitting new rear leaf springs. Ride height and axle angle shift slightly with a spring pack change, which affects rear toe and overall handling. Book an alignment straight after installation and again after the 500km bedding-in period.
Toughdog offers standard-duty and heavy-duty leaf spring options for the Colorado RG, so you can match the pack to what you actually carry. This listing is the heavy-duty pair for constant accessory loads. If you're unsure whether standard or heavy-duty suits your setup, our team can advise based on your fitted accessories and towing habits.
Since this is a load-rated spring pack rather than a raised lift kit, tyre clearance stays close to factory. If you're planning larger tyres, you'll need a genuine lift kit with raised springs and shocks rather than a heavy-duty leaf pack alone — speak to our team about options for your Colorado RG.
This Toughdog rear leaf spring pair carries Toughdog's standard manufacturer warranty against manufacturing defects. Keep your proof of purchase and fitment records, as correct installation and alignment are generally required to maintain warranty cover. Contact our team if you need the specific warranty terms in writing before you order.
Yes, this pack is designed to keep the Colorado RG comfortable and predictable on-road while carrying its usual accessories, not just for off-road use. Because it's a heavy-duty rate matched to constant loads, it won't feel unnecessarily stiff if your vehicle is genuinely running that weight day to day. If your Colorado RG is mostly unladen, a standard-duty spring will likely ride better for daily commuting.
Perfect Upgrade for Our Loaded Colorado
Fitted these Toughdog rear leaf springs to our 2015 Colorado and the difference when loaded up for camping trips is night and day. The rear end no longer sags with the camper trailer hitched up and all the family gear in the tub. Ride quality is surprisingly comfortable even when running empty around town, which was a pleasant surprise after hearing horror stories about heavy duty springs.(5)
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