Dobinsons Rear Coil Springs for Toyota Landcruiser 80 & 105 Series — 3-Inch Lift

These Dobinsons rear coil springs provide a precise 3-inch (75mm) lift over factory ride height when measured at the rear axle centerline. Actual installed height will vary slightly based on which load rating you select and your vehicle's constant accessory weight — heavier springs (400kg rating) will sit slightly higher when lightly loaded compared to the 100kg option. After the recommended 500-kilometre break-in period, expect springs to settle approximately 10-15mm from initial installation height as the coils seat and compress under normal use. For balanced stance and proper handling characteristics, always match rear lift height with corresponding front coil spring lift to maintain factory rake angle and prevent nose-down or tail-high attitude.

This kit contains 2 x Dobinsons linear rate rear coil springs manufactured from high-tensile spring steel with corrosion-resistant powder coating. You'll need to select one of three load rating options at time of purchase: 100kg constant load (part number C59-185), 200kg constant load (C59-171), or 400kg constant load (C59-153) based on your permanent accessory weight. The kit includes the rear coil springs only — shock absorbers, spring compressors, installation hardware, upper and lower spring seats, and all other suspension components are sold separately and must be purchased based on your vehicle's current condition. We recommend inspecting and potentially replacing shock absorbers during spring installation for optimal performance and safety.

Yes, these Dobinsons rear coil springs significantly improve towing capability by reducing rear squat and maintaining proper suspension geometry under towball weight — however, spring selection must be based on constant accessory load only, never towing weight. For example, if you have 150kg of constant rear accessories, select the 200kg spring option regardless of whether you occasionally tow a 2500kg caravan. The stiffer spring rate will help control rear squat when towing, but for serious caravan towers we strongly recommend adding adjustable airbag suspension in conjunction with these springs for infinitely variable load support, on-demand leveling, and superior stability. This combination allows you to run the correct spring rate for your constant load while adding air pressure only when towing for the ultimate versatile setup.

Upgrading control arms is not mandatory for a 3-inch lift on Landcruiser 80 and 105 Series, but is highly recommended if your vehicle has covered over 200,000km or shows signs of worn bushings, cracked ball joints, or bent arms. A 3-inch lift will slightly alter suspension geometry and place additional stress on control arm bushings — worn components will accelerate tyre wear, cause steering wander, and reduce the effectiveness of your new springs. If your control arms, radius arms, and panhard rod are in good condition with fresh bushings, you can safely install these springs without immediate upgrades. However, many owners take advantage of the suspension being disassembled during spring installation to proactively fit heavy-duty control arms, adjustable panhard rods, and upgraded radius arm bushings for maximum handling precision and component longevity.

Yes, professional four-wheel alignment is absolutely mandatory after installing any suspension lift kit including these rear coil springs. Lifting the rear of your Landcruiser will alter rear axle geometry, affect pinion angle, and can influence front suspension angles due to changes in vehicle rake and weight distribution. Even though the solid rear axle has limited alignment adjustment, the front suspension will require camber, caster and toe correction to restore proper tyre contact patch, steering response and prevent premature inside or outside edge tyre wear. Failure to align after installation will result in accelerated tyre wear (potentially destroying tyres within 10,000km), poor steering feel, brake pull, and wandering on highway. Schedule alignment after the 500km break-in period once springs have fully settled for most accurate results.

Absolutely — in fact, selecting different spring rates for front versus rear is standard practice and necessary to match each axle's specific constant load. The rear of a Landcruiser typically carries drawers, fridge systems, dual batteries, water tanks, and rear bar/tyre carriers, while the front carries bullbar, winch, and driving lights — these loads are almost never equal. Calculate your front constant load separately from rear constant load, then select the appropriate spring rating for each axle independently. For example, if your front has 80kg of accessories (100kg front springs) but your rear has 180kg of accessories (200kg rear springs), this mismatched rating is completely normal and correct. Never select matching spring rates front and rear just for symmetry — always base selection on actual measured accessory weight for each axle.

A 3-inch rear lift combined with matching 3-inch front springs will typically allow fitment of 33-inch tyres (285/75R16 or similar) on Landcruiser 80 and 105 Series without significant modifications, though minor trimming of plastic body mounts or rear mudflaps may be required at full articulation. For 35-inch tyres you'll need additional modifications including body mount chops, radius arm spacers or adjustable arms to push the front axle forward, and potentially diff drop brackets to correct CV angles. Tyre clearance also depends on wheel offset and backspacing — running factory offset wheels provides maximum clearance, while aggressive negative offset wheels will push tyres outward into guards requiring more extensive cutting. Always test-fit tyres at full steering lock and full suspension compression before committing to a tyre size, and remember that insurance companies may require engineer certification for tyre sizes exceeding certain thresholds above factory specifications.

Dobinsons rear coil springs are backed by the manufacturer's comprehensive warranty covering defects in materials and workmanship under normal use and proper installation conditions. Warranty coverage includes spring sag exceeding specified tolerance, fractures or cracks in spring steel, and coating delamination or corrosion breakthrough within the warranty period. Warranty claims require proof of professional installation, evidence that correct load rating was selected based on actual constant accessory weight, and confirmation that springs were not overloaded beyond their rated capacity or damaged through accident or misuse. For specific warranty duration and detailed terms and conditions, contact our team at time of purchase — we'll provide full documentation and support you through any warranty claim process should issues arise during normal touring or daily driving use.

Yes, Dobinsons linear rate rear coil springs are specifically engineered to balance off-road capability with on-road comfort, making them ideal for Landcruisers used as daily drivers, family tourers, and highway cruisers. Unlike aggressive constant-load springs designed purely for heavy loads, the linear rate design provides progressive compression that absorbs bumps smoothly when lightly loaded while still supporting maximum weight capacity when fully equipped. Provided you select the correct spring rate for your actual constant accessory load (not oversprung), you'll experience comfortable highway ride quality, controlled body roll in corners, and minimal harshness over speed bumps or road imperfections. Many owners report improved highway stability compared to sagging factory springs, especially when loaded with touring gear or towing caravans, thanks to the restored ride height and fresh spring rate maintaining proper suspension geometry throughout the travel range.