The Toughdog Rear Shock Absorbers for Holden Colorado RG 2012+ deliver proven foam cell technology engineered for Australian conditions — whether you're towing, touring, or hauling heavy loads. Designed to complement aftermarket lift kits or restore factory ride height, these shocks provide improved damping control, reduced body roll, and exceptional durability across bitumen, corrugations, and rough terrain. Backed by Toughdog's manufacturer warranty and shipped from Australian stock with expert support available.
Browse all compatible suspension parts for your Rear Shock Absorbers Suits - Holden using our parts finder.
| Make | Model | Series | Years | Engine |
|---|---|---|---|---|
| Holden | Colorado | RG | 2012-2020 | 2.5L / 2.8L Turbo Diesel |
| Holden | Colorado 7 | RG | 2012-2016 | 2.8L Turbo Diesel |
Fits both 4x2 and 4x4 models including LX, LT, LTZ variants and dual cab, space cab, and cab chassis body styles. Also compatible with Isuzu D-Max MU-X models sharing the same platform.
Not sure if this fits your vehicle? Check all suspension parts for the Holden Colorado RG or contact our suspension experts for personalised advice.
While these shocks are compatible with factory and aftermarket springs, selecting the correct spring rate is essential for optimal performance based on your constant accessory load. Front accessories like bull bars, winches, and steel trays add weight, while rear loads include drawer systems, dual batteries, water tanks, canopies, and toolboxes. For frequently towing caravans or carrying heavy payloads, consider pairing these shocks with upgraded heavy-duty leaf springs or airbag suspension systems to maintain ride height and improve load distribution.
Professional installation is recommended to ensure correct fitment, torque specifications, and safety. Experienced DIY mechanics with appropriate tools can complete the installation following manufacturer guidelines. A wheel alignment is mandatory after fitting any suspension components to prevent uneven tyre wear and maintain steering stability. Allow a 500km break-in period for bushings and seals to settle before making final adjustments. For complete suspension overhauls, consider pairing these rear shocks with premium front shock absorbers and upgraded suspension components for balanced performance.
Toughdog has earned its reputation as Australia's number one suspension brand through decades of engineering excellence, real-world outback testing, and trusted performance. Designed by Australians for Australian conditions, every component undergoes rigorous testing across the country's harshest terrain. Backed by comprehensive manufacturer warranty and trusted by touring families, tradespeople, and outback adventurers, Toughdog delivers exceptional value without compromising quality. Explore the complete Toughdog suspension range for matched components and complete upgrade solutions.
These Toughdog rear shocks are perfect for Colorado RG owners who tow caravans or trailers regularly, tradies carrying heavy tools and equipment, touring families with loaded canopies and drawer systems, or anyone seeking to restore factory ride quality after years of wear. If you frequently carry variable loads, combining these shocks with adjustable airbag suspension provides on-demand load support and levelling capability. Whether you're commuting daily, exploring remote tracks, or hauling maximum payload, this upgrade delivers noticeable improvements in control, comfort, and capability.
Ready to upgrade your Colorado's rear suspension? These Toughdog shocks are in stock now with fast dispatch across Australia. Our suspension experts are available to answer questions, confirm fitment, and recommend complementary upgrades. Browse our complete lift kit range or contact us today to build your ideal suspension setup.
Yes, these Toughdog rear shock absorbers (SKU: FC41382) are specifically engineered to fit Holden Colorado RG models from 2012 onwards, including 2012-2020 model years. They're compatible with both 4x2 and 4x4 variants including LX, LT, and LTZ trim levels across dual cab, space cab, and cab chassis body styles. They also fit the Colorado 7 (RG) SUV from 2012-2016 and Isuzu D-Max/MU-X models sharing the same platform. If you need confirmation for your specific variant, our team can verify fitment using your VIN or build date.
These Toughdog rear shocks are designed as direct OEM replacements and do not provide lift on their own — they restore or maintain your existing ride height whether stock or lifted. If your Colorado is sagging due to worn factory shocks or heavy loads, installing these will restore proper suspension geometry and ride height. For actual lift, these shocks pair perfectly with upgraded leaf springs or lift blocks, supporting suspension lifts typically ranging from 25mm to 50mm. They're compatible with both factory height and aftermarket lifted configurations, providing improved damping control regardless of ride height.
This kit includes a pair (2 pieces) of Toughdog foam cell rear shock absorbers — one for the left side and one for the right side of your Colorado RG. Each shock comes with factory-style mounting bushings pre-installed and includes upper and lower mounting hardware for installation. These are rear-only shocks, so front shock absorbers, leaf springs, U-bolts, and other suspension components are sold separately. If you're looking for a complete suspension overhaul, we recommend reviewing our matched front shocks and complete lift kits designed specifically for the Colorado RG platform.
Absolutely — these Toughdog rear shocks are specifically engineered with enhanced damping control for towing applications, making them ideal for caravan and trailer use. The foam cell technology maintains consistent performance under heavy loads and reduces rear-end sag when hitched. They provide improved stability during acceleration, braking, and cornering while towing, reducing body sway and bounce on corrugated roads. For frequent towers or those carrying maximum payload, pairing these shocks with upgraded heavy-duty leaf springs or airbag suspension provides the ultimate load-handling setup.
Control arm upgrades are not required when installing these rear shock absorbers at factory ride height or moderate lifts (up to 50mm). The Colorado RG uses leaf springs at the rear rather than coil springs, so control arm geometry is less critical compared to front suspension. However, if you're installing a complete lift kit exceeding 50mm or experiencing front-end geometry issues, upgraded front upper control arms can restore optimal castor and camber angles. These shocks are compatible with both factory and aftermarket control arm setups, ensuring flexibility for current and future modifications.
Yes, a professional four-wheel alignment is mandatory after installing any suspension components including shock absorbers. While shocks don't directly alter alignment angles, the installation process and any changes in ride height can affect camber, castor, and toe settings. Proper alignment ensures even tyre wear, optimal handling, and safe steering response. Most suspension specialists will recommend alignment as part of the installation service, and checking alignment annually or after any suspension work is considered best practice for maintaining your Colorado's handling and tyre longevity.
These Toughdog rear shocks feature fixed valving optimised for a broad range of loads from lightly loaded to heavy-duty towing and payload applications. While the shocks themselves don't have adjustable damping, they're designed to work with various leaf spring rates and configurations. You can pair them with factory springs, heavy-duty constant load springs, or progressive rate leaf packs depending on your typical load requirements. For variable load applications where you need on-demand adjustability, combining these shocks with an airbag suspension system provides the best of both worlds — consistent damping with adjustable spring support.
These shock absorbers alone do not provide lift or increase tyre clearance — they're designed to work with your existing ride height whether factory or lifted. To fit larger tyres on your Colorado RG, you'll need to install a complete suspension lift kit including springs or blocks that raise the vehicle's ride height. These Toughdog shocks are compatible with lifted setups and will provide excellent damping control once you've achieved the desired lift height. Typical Colorado RG lifts of 40-50mm allow for 32-inch tyres, while 75mm+ lifts can accommodate 33-inch tyres with appropriate wheel offset and trimming.
These Toughdog rear shock absorbers are backed by Toughdog's comprehensive manufacturer warranty, covering defects in materials and workmanship under normal use conditions. Warranty terms typically include coverage for the shock body, seals, and internal components, though specific duration may vary based on application and usage. Keep your proof of purchase and installation records, and ensure installation is completed by a qualified technician to maintain warranty validity. Australian stock purchases from authorised dealers like 4WD Suspension ensure full warranty support and access to Toughdog's local customer service network.
Yes, these Toughdog rear shocks are engineered to deliver excellent comfort and control for daily driving while maintaining capability for weekend adventures and heavy-duty use. The balanced valving provides a comfortable ride on sealed roads, absorbing bumps and road imperfections without harshness, while still offering the control needed for loaded touring and off-road conditions. They're equally at home on the daily commute as they are on corrugated outback tracks or towing cross-country. Many Colorado RG owners choose Toughdog specifically because it strikes the perfect balance between everyday comfort and weekend capability without compromise.
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