Parts for your 2006 Toyota Land cruiser-Coil springs

2006 Toyota LandCruiser coil springs — fitment, purpose and service advice

Coil springs are absolutely relevant to a 2006 Toyota LandCruiser. Technical sources including Toyota’s LandCruiser 100/105 Series workshop information (Suspension section), the Toyota Electronic Parts Catalogue (covering UZJ100, HDJ100 and HZJ105), and period Australian model brochures confirm that every 2006 LandCruiser wagon runs rear coil springs. Up front, most 100 Series models use torsion bars with independent front suspension, while the 105 Series (live front axle) uses coil springs at the front as well. That means “coil springs” are a core service item on the rear of all 2006 LandCruiser wagons, and on both axles for 105 models.

On a 2006 LandCruiser, the coil springs carry the vehicle’s weight, set ride height and let the suspension move freely over corrugations, ruts and kerbs. Compared with leaves, coils give better on-road comfort and more precise control off-road, especially when paired with good dampers. They work hard on Aussie and Kiwi roads — towing boats, touring outback tracks, or hauling gear — so it pays to keep them in top nick.

During routine servicing, a visual check goes a long way. Look for broken or sagged coils, chipped powdercoat with rust starting, or a rear end sitting low after a few hours parked. Listen for knocks over speed bumps (a sign of a broken pigtail or collapsed isolator). If ride height has dropped, the Cruiser bottoms out, or it leans to one side, it’s time to replace. Always replace coil springs in axle pairs to keep things even, and match the spring rate to how the vehicle is actually used — bullbar, winch, dual batteries, drawers, long-range tank or constant towing all call for heavier-rate options. For AHC-equipped 100 Series variants, stick with springs designed for that system and calibrate the height sensors after any change.

Good practice when fitting coils includes renewing rubber isolators, checking bump stops, inspecting trailing arm and panhard rod bushes, and pairing new coils with suitable dampers. Tighten suspension hardware at normal ride height, then get a wheel alignment. After 200–500 km, a quick re-check of ride height and fasteners helps catch any settling. If working at home, use a quality spring compressor and safety stands — coils store a lot of energy and shouldn’t be taken lightly.

• Tell-tales it’s time: uneven stance, frequent bottoming, harsh or bouncy ride, visible cracks or heavy rust, rear sitting low when loaded, or tyres scrubbing after a lift.
• Service rhythm: inspect every 10,000–15,000 km, many factory coils last 200,000–300,000 km, less with heavy loads or corrugations.

Does a 2006 LandCruiser have coil springs front and rear?

All 2006 LandCruiser wagons run rear coil springs. Up front, most 100 Series models use torsion bars with independent suspension. The 105 Series (live front axle) uses coil springs at the front as well. Checking the VIN/variant will confirm which front setup a specific vehicle has.

How long do the coil springs last on a 100/105 Series?

With mixed city and touring duties, many factory coils go 200,000–300,000 km. Heavy towing, constant loads, beach work and long corrugations shorten that. Replace if there’s sag, cracks, flaking coating with rust, or the ride quality has gone off.

What should be replaced when doing coils on a 2006 LandCruiser?

Plan on new upper/lower isolators, check bump stops, sway-bar bushes and link rubbers, and pair the coils with appropriate dampers. After installation, torque bushes at ride height and book a wheel alignment. If the vehicle has AHC, recalibrate the height sensors to keep the system happy.