Dobinsons Nitro Gas 2 Inch Lift Kit — Holden Colorado RC 2008-2012

This kit delivers a 2 inch (50mm) lift across both front and rear of your Holden Colorado RC 2008-2012. The front lift is achieved through extended-length Dobinsons Nitro Gas struts with firmer valving, while the rear lift comes from Dobinsons 40mm raised leaf springs specifically designed for the RC platform. This 50mm lift provides noticeable improvements in ground clearance, allowing fitment of larger tyres up to approximately 32 inches (subject to wheel offset and trimming), and significantly improves approach, departure, and breakover angles for off-road capability. The actual settled height may vary slightly depending on your constant accessory load, with final ride height typically settling after the initial 500km break-in period.

This comprehensive Dobinsons lift kit includes everything needed for front and rear suspension upgrade: 2 x Dobinsons Nitro Gas twin-tube front struts with steel dust covers, 2 x Dobinsons Nitro Gas rear shock absorbers, 2 x Dobinsons 40mm raised rear leaf springs, 4 x heavy-duty U-bolts for leaf spring installation, and 1 x complete polyurethane bush kit with all necessary mounting hardware. The kit provides a complete shock and spring solution for your Colorado RC 2008-2012. Please note that depending on your vehicle's configuration and intended use, you may require additional components such as extended brake lines, upper control arms, or differential drop brackets, which are sold separately and can be recommended by our suspension specialists based on your specific setup.

Absolutely — this Dobinsons Nitro Gas lift kit is excellent for towing applications when the correct rear spring rate is selected. The vehicle and load-specific valving in the shock absorbers provides superior control under load, dramatically reducing rear-end squat and improving stability when towing caravans, camper trailers, or work trailers. The 40mm raised leaf springs offer increased load capacity compared to standard springs, while the larger bore shocks with increased oil capacity resist fade during extended towing in harsh conditions. When ordering, ensure you select the appropriate spring rate based on your constant accessory load (permanent modifications like canopies, toolboxes, and drawer systems), not occasional towing weight. For maximum towing versatility with variable loads, many Colorado RC owners pair this kit with adjustable airbag suspension for on-demand rear support adjustment.

While this 2 inch Dobinsons lift kit is designed as a complete bolt-in solution that doesn't absolutely require control arm replacement for installation, upgrading to aftermarket control arms is highly recommended to optimize suspension geometry and maximize the benefits of your lift. At 50mm of lift, your Colorado RC's original control arms will still function, but aftermarket adjustable or extended control arms will restore proper castor and camber angles, improving steering feel, high-speed stability, and tyre wear patterns. Upgraded control arms also typically feature stronger construction and better bushings than factory arms, improving durability for off-road use. Our suspension specialists can assess your specific vehicle setup and recommend whether control arm upgrades are necessary based on your driving conditions, tyre size plans, and performance expectations.

Yes, a professional four-wheel alignment is absolutely mandatory after installing this or any lift kit on your Holden Colorado RC. Lifting your vehicle alters suspension geometry, affecting camber, caster, and toe angles across all four wheels — these changes will cause rapid and uneven tyre wear, compromised handling, and potential safety issues if not corrected. A qualified alignment technician with 4WD experience should perform a full alignment using manufacturer specifications adjusted for lifted vehicles, ensuring your Colorado tracks straight, handles predictably, and delivers maximum tyre life. This alignment should be performed after installation and initial test driving, then rechecked after the 500km break-in period once springs have fully settled to their final ride height.

Yes, selecting the correct spring rates for your specific constant accessory load is critical for optimal performance and ride quality. When ordering this Dobinsons kit, you'll be asked to specify your Current Constant Load for both front and rear independently — this allows you to match spring rates precisely to your permanent modifications. Front spring selection should consider bull bars, winches, upgraded bumpers, driving lights, and roof racks with roof-top tents, while rear spring selection accounts for canopies, drawer systems, dual batteries, long-range fuel tanks, and permanently mounted toolboxes or recovery gear. It's crucial to be honest and conservative in your assessment — selecting springs that are too heavy for your actual constant load will result in harsh ride quality and potential damage to other suspension components. Remember that occasional loads like camping gear, passengers, or intermittent towing should NOT influence spring rate selection.

With this Dobinsons 2 inch (50mm) lift kit installed on your Holden Colorado RC 2008-2012, you can typically accommodate tyres up to approximately 32 inches in diameter without significant modifications, though the exact fitment depends on your wheel offset, tyre width, and suspension cycle. For optimal fitment without rubbing during full compression or steering lock, most Colorado RC owners pair this lift with 265/75R16 or 285/75R16 tyres (approximately 31.5-32.8 inches tall) on appropriately offset wheels. Some minor trimming of plastic inner guards or mud flaps may be required depending on your specific tyre and wheel combination. Fitting larger tyres beyond 32 inches will typically require additional modifications such as body lifts, guard trimming, or upgraded control arms to maintain full suspension travel. Our team can provide specific tyre fitment advice based on your chosen wheel and offset combination to ensure proper clearance throughout the suspension's full range of motion.

This Dobinsons Nitro Gas lift kit is backed by Dobinsons' comprehensive manufacturer warranty, reflecting their confidence in over 60 years of Australian suspension engineering and manufacturing expertise. Dobinsons shock absorbers and suspension components are built to TS16949 International Quality Assurance Systems standards using premium materials including Japanese NOK seals, German Fuchs oil, and hardened chromed rods designed to withstand extreme Australian conditions. Warranty coverage protects against manufacturing defects and premature component failure when the kit is installed correctly and used within designed parameters. For specific warranty terms, duration, and claim procedures, please refer to the warranty documentation included with your kit or contact our team who can provide detailed warranty information and ensure your purchase is properly registered. Proper installation by qualified technicians and adherence to recommended service intervals will ensure you get maximum life and performance from your Dobinsons suspension investment.

Yes, this Dobinsons Nitro Gas lift kit is engineered to deliver an excellent balance between daily driving comfort and off-road capability, making it ideal for Colorado RC owners who use their vehicle as both a workhorse and weekend adventurer. The twin-tube design with vehicle-specific valving provides controlled damping that absorbs bumps and road imperfections effectively, while natural rubber bushings reduce noise, vibration, and harshness compared to polyurethane alternatives. While the firmer valving compared to worn factory shocks will feel more controlled and supportive (especially when loaded), it won't deliver the harsh, jarring ride associated with budget lift kits or extreme off-road-only setups. Provided you select the correct spring rates for your actual constant load — not oversprung for loads you don't carry — you'll experience comfortable daily driving with significantly improved handling, reduced body roll, and better load-carrying capability when needed. The ride quality will continue to improve through the 500km break-in period as components seat and springs settle to their final rate.