Bilstein 2-Inch Lift Kit for Holden Colorado7 & Trailblazer Wagon (2012-On)

This kit delivers approximately 50mm (2 inches) of lift measured at the chassis, providing increased ground clearance for off-road obstacles while maintaining a balanced stance suitable for daily driving. The Bilstein B6 Offroad shocks are specifically valved for wagon applications, offering firmer control than factory dampers without creating a harsh ride — you'll notice improved body control during cornering and reduced body roll when towing. King coil springs feature progressive-rate design that softens over small bumps for comfort yet firms up under load for capability. Ride quality is noticeably more controlled than stock suspension, particularly when loaded or towing, while remaining compliant enough for family use and long-distance highway touring.

The kit includes two Bilstein B6 Offroad monotube gas-charged front shock absorbers, two King front coil springs, two Bilstein B6 Offroad rear shock absorbers, and two King rear coil springs — a complete four-corner suspension upgrade. All springs are custom-rated for Colorado7 and Trailblazer wagon applications with multiple load ratings available to match your constant accessory weight. This kit does not include upper control arms, extended brake lines, bump stop extensions, or caster correction components which may be required depending on your specific vehicle configuration and lift height achieved. Hardware such as shock mounting bolts and spring seats use factory components in most cases.

Yes, this Bilstein and King combination is excellent for towing applications up to your vehicle's rated capacity (typically 2500-3000kg for Colorado7/Trailblazer wagons). The upgraded spring rates significantly reduce rear squat compared to factory suspension, while Bilstein's monotube shock design maintains consistent damping control even with heavy tongue weight and trailer sway forces. When ordering, select a rear spring rate that accounts for your constant rear accessories only — not the trailer weight itself. For maximum towing performance and the ability to adjust rear height based on load, many customers add adjustable airbag suspension inside the coil springs for on-demand support without over-springing the unladen ride quality.

Upper control arm upgrades are not strictly required for a 2-inch lift on Colorado7 and Trailblazer wagons, but they are highly recommended for optimal suspension geometry and alignment. At 50mm of lift, your front wheels will gain additional negative camber and you may lose some positive caster angle, affecting tyre wear patterns and steering feel. Aftermarket upper control arms with extended ball joint positions restore correct geometry, improve wheel alignment range, increase steering responsiveness, and prevent premature wear on tyres and CV joints. Many experienced installers and touring enthusiasts choose to fit upgraded control arms at the time of lift kit installation to maximize performance and component longevity, particularly if you plan extensive off-road use or long-distance touring.

Yes, a professional four-wheel alignment is absolutely mandatory after installing any lift kit including this Bilstein system. Raising your vehicle's ride height changes suspension geometry angles including camber, caster, and toe settings which directly affect tyre wear, steering precision, and vehicle stability. Without proper alignment, you'll experience accelerated and uneven tyre wear (particularly on inside edges), pulling to one side during driving, and vague or wandering steering feel on highways. Most reputable 4WD workshops include alignment in their installation quote and will adjust all four wheels to manufacturer specifications (or improved specifications if upgraded control arms are fitted). Plan for alignment to be performed after the initial 500km break-in period when springs have fully settled to their final height.

Yes, this kit offers multiple spring rate options for both front and rear to precisely match your vehicle's constant accessory load, and selecting correctly is crucial for ride quality and component longevity. When ordering, calculate the total weight of permanently fitted accessories: front loads include bullbars (30-50kg), winches (30-40kg), upgraded intercoolers, and heavy-duty batteries; rear loads include drawer systems (40-80kg), dual battery setups, long-range water tanks, roof-mounted equipment, and steel canopies if fitted. Select spring rates based only on these constant loads — do not include passengers, camping gear, or trailer weights as these are temporary. Choosing springs that are too heavy for your actual load will result in a harsh, uncomfortable ride and may cause premature wear on bushings and shock absorbers.

With a 2-inch lift and factory wheel offset, most Colorado7 and Trailblazer wagons can safely fit tyres up to 265/70R17 (approximately 31.6 inches diameter) without rubbing on suspension components or body panels during full lock turning and suspension compression. Some owners successfully run 265/75R17 or even 275/70R17 with minor trimming of plastic guard liners and mud flaps, though this may cause contact during extreme articulation or with full passenger loads. Wheel offset and backspacing significantly affect tyre clearance — aftermarket wheels with increased positive offset may allow larger tyres, while negative offset wheels bring tyres closer to guards. Always test-fit and perform full-lock turning circles and suspension compression tests before committing to a tyre size, and remember that larger, heavier tyres may require recalibration of speedometer and can affect braking performance.

Bilstein B6 Offroad shock absorbers are covered by Bilstein's comprehensive manufacturer warranty which protects against defects in materials and workmanship for the life of the original vehicle owner when used in normal driving conditions. King Springs are backed by King's industry-leading warranty covering manufacturing defects and spring sag under normal use. Warranty coverage requires that components are correctly installed by a qualified technician according to manufacturer specifications, that vehicle load ratings are not exceeded, and that regular maintenance including shock inspection and spring cleaning is performed. Warranty does not cover damage from accidents, competition use, or improper installation. As an authorised Bilstein dealer, 4WD Suspension Australia fully supports all manufacturer warranty claims and will assist with assessment and replacement if any covered issues arise.

Absolutely — this kit is specifically engineered to balance off-road capability with excellent on-road manners for daily driving, commuting, and long-distance highway touring. Bilstein B6 Offroad shocks feature refined valving that controls body movement and reduces float over highway undulations while remaining compliant enough for comfortable suburban driving and shopping trips. King progressive-rate springs provide a slightly firmer feel than factory suspension (which many drivers prefer for reduced body roll and improved steering response) without creating a harsh or commercial-vehicle ride quality. Thousands of Australian families use this exact setup for everything from school runs to crossing the continent on grey nomad adventures, appreciating the versatility of a suspension system that handles laden touring, towing, beach driving, and daily errands with equal competence and comfort.