Dobinsons Monotube IFP 2" Lift Kit for Holden Colorado RG7 / Trailblazer

This kit provides approximately 2 inches (50mm) of lift over standard ride height when installed on a stock or lightly accessorised vehicle. Final lift height will vary depending on the spring rate you select and the constant accessory weight your vehicle carries — heavier loads will compress the springs slightly, while lighter vehicles may sit marginally higher. The lift is achieved through raised coil springs front and rear, providing balanced geometry and avoiding the need for extreme suspension modifications. After the initial 500-1000km break-in period, springs will settle to their final height, typically losing 5-10mm from the initial installed height.

This complete kit includes two Dobinsons Monotube IFP front shock absorbers, two raised front coil springs with selectable spring rates, two Monotube rear shock absorbers, and two raised rear coil springs also with selectable spring rates. All components are designed to work together as an engineered suspension system for optimal performance and safety. Note that this kit does not include upper control arms, extended brake lines, differential drop spacers, or wheel alignment — these items are available separately if required for your specific vehicle configuration and lift height. All necessary spring components are included for a complete front and rear suspension upgrade.

Yes, this Dobinsons Monotube IFP lift kit is well-suited for regular towing applications when matched with the correct rear spring rate for your setup. The monotube shock technology provides superior damping control and heat dissipation under towing loads compared to standard twin-tube shocks, maintaining stability and ride quality when hauling caravans, camper trailers, or work trailers. When selecting spring rates, remember to account only for constant accessory weight on the vehicle itself — not the towing load, as this is a dynamic load. For vehicles that tow heavy loads frequently or carry highly variable payloads, consider adding airbag suspension for adjustable load support and the ability to level your vehicle regardless of towing weight.

While not strictly mandatory for a 2 inch lift, upgrading to extended or adjustable upper control arms is highly recommended to restore optimal suspension geometry, particularly castor angle, which can be affected by the increased ride height. Maintaining correct castor improves steering feel, high-speed stability, and steering wheel return, while also reducing tyre wear and ensuring your vehicle tracks straight. Many Colorado RG7 owners choose to install upgraded control arms at the same time as the lift kit to maximise the benefits of the suspension upgrade and prevent geometry-related issues. Our team can advise on the best control arm options for your specific driving requirements and whether your vehicle configuration requires this upgrade.

Yes, a full four-wheel alignment is absolutely mandatory after installing any lift kit or suspension modification. Changing ride height alters your vehicle's suspension geometry including castor, camber, and toe angles, which directly affect steering behaviour, tyre wear patterns, and vehicle safety. A qualified alignment technician should set your Colorado RG7 to manufacturer specifications (or adjusted specifications if you've fitted control arms or other geometry-correction components) to ensure optimal handling, even tyre wear, and safe driving characteristics both on-road and off-road. Skipping the alignment will likely result in premature tyre wear, poor steering feel, and potentially dangerous handling characteristics. Budget for a quality alignment as an essential part of your lift kit installation cost.

Yes, you must select appropriate spring rates for both the front and rear of your vehicle independently based on the constant accessory weight carried in each location. Front spring rate selection should account for bull bars, winches, heavy-duty batteries, and underbody protection, while rear spring rate selection should factor in canopies, drawer systems, dual spare wheels, and long range fuel tanks. It's critical to be honest and conservative when assessing your constant load — selecting springs that are too heavy for your actual weight will result in a harsh, uncomfortable ride, excessive stress on suspension components, and poor off-road articulation. Only consider accessories that are permanently fitted to your vehicle, never occasional loads like camping gear, passengers, or towing weight.

A 2 inch lift on the Holden Colorado RG7 typically allows fitment of tyres up to 32-33 inches in diameter (approximately 285/70R17 or 265/75R16) depending on your wheel offset, tyre brand's actual dimensions, and whether you're willing to accept minor trimming of plastic guards or mudflaps. Some tyre and wheel combinations may require minor guard modifications for full articulation without rubbing, particularly at full lock or during heavy compression off-road. Wider tyres and aggressive tread patterns may require more clearance work than narrower options. We recommend researching your specific tyre and wheel combination on Colorado RG7 forums or contacting our team with your intended setup for fitment advice before purchasing tyres. Remember that larger tyres will also affect gearing, speedo accuracy, and potentially require recalibration.

This Dobinsons Monotube IFP lift kit is backed by Dobinsons' comprehensive manufacturer warranty, which covers defects in materials and workmanship for an extended period from the date of purchase. Warranty coverage applies when the kit is installed correctly by a qualified technician following all manufacturer specifications and torque settings, the vehicle is used within normal operating parameters, and proper maintenance is performed. Warranty does not cover wear items, damage from accidents or misuse, or failure resulting from incorrect installation or modification of components. For specific warranty terms, conditions, and duration for this kit, contact our team or refer to the documentation included with your kit. Dobinsons' Australian presence ensures warranty claims are handled locally with minimal downtime.

Absolutely — this Dobinsons Monotube IFP kit is engineered to deliver a refined, comfortable ride for daily commuting and highway touring while also providing enhanced off-road capability when needed. The monotube shock design with Internal Floating Piston technology ensures consistent damping performance across a wide range of speeds and conditions, meaning you won't experience the harsh, truck-like ride often associated with budget lift kits. When correctly matched with appropriate spring rates for your vehicle's constant load, this kit maintains near-factory ride comfort on sealed roads while significantly improving control, stability, and articulation on corrugated dirt roads, sand, and rocky terrain. Thousands of Colorado RG7 owners run Dobinsons suspension as their daily setup for exactly this reason — genuine all-round performance without compromise.