Toughdog Rear Coil Springs for Toyota Prado 120 Series Grande — Heavy Duty Pair

These Toughdog rear coil springs are primarily designed as load-carrying and replacement springs rather than lift springs, with the main purpose being to restore or maintain factory ride height when carrying constant accessory loads. Depending on the spring rate selected and your current load, they typically restore 20-40mm of ride height compared to worn factory springs on a loaded vehicle, or maintain factory height with added accessories. The actual lift achieved depends on your selected spring rate, the weight of permanently installed accessories, and the condition of your existing springs. If you're seeking significant lift for your Prado 120, consider a complete lift kit package that includes matched front and rear components for balanced geometry.

This kit includes a matched pair (2 springs) of Toughdog heavy-duty rear coil springs manufactured specifically for the Toyota Prado 120 Series Grande. The springs feature corrosion-resistant powder coat finish and are engineered to OE+ specifications for direct fitment. This kit is springs only — you will reuse your existing upper spring seats, spring isolators, and mounting hardware from your vehicle. Shock absorbers are not included and should be inspected during installation, with upgrades highly recommended when fitting new springs to maintain proper damping and ride quality. Spring compressors and professional installation equipment are required but not supplied with this kit.

Yes, these Toughdog rear coil springs are excellent for towing applications when the correct spring rate is selected to match your towing requirements and constant accessory load. They help prevent excessive rear squat when hitching caravans, camper trailers, or boat trailers, maintaining proper weight distribution and headlight aim for safer towing. The improved spring rate provides better control and stability during cornering, braking, and highway driving while towing. For maximum towing performance and adjustability, many Prado 120 owners pair these springs with airbag suspension systems, allowing fine-tuning of rear ride height and load support for different towing weights. Always ensure your total vehicle and trailer weight remains within Toyota's specified GCM (Gross Combination Mass) rating.

For rear coil spring replacement on the Prado 120 Grande, control arm upgrades are not typically required as the springs provide minimal lift and maintain factory suspension geometry. However, it's essential to thoroughly inspect all rear suspension components during spring installation, including control arm bushes, panhard rod bushes, and shock absorber condition. If your Prado has covered significant kilometres (over 150,000km) or shows signs of bush deterioration, cracking, or play, replacing worn components at the same time as your springs is highly recommended. This ensures optimal handling, prevents premature wear of your new springs, and eliminates the labour cost of dismantling the suspension again later. Front control arm upgrades become more important if you're installing a complete lift kit with significant height increase.

Yes, a full four-wheel alignment is absolutely mandatory after installing new rear coil springs on your Prado 120 Grande. While rear coil spring replacement doesn't directly adjust front-end geometry, the change in rear ride height affects the vehicle's overall stance, thrust angle, and weight distribution, which impacts steering and tyre wear patterns. A comprehensive alignment ensures correct rear toe settings, checks thrust angle alignment between front and rear axles, and verifies that front camber and caster remain within Toyota's specifications. Skipping the alignment can result in premature and uneven tyre wear, pulling to one side, and compromised handling characteristics. The alignment should be performed after the initial installation and rechecked after the 500km break-in period once springs have fully settled.

Yes, Toughdog manufactures these rear coil springs in multiple spring rate options to precisely match your Prado 120 Grande's constant accessory load. When ordering, you'll need to calculate the total weight of permanently installed rear accessories including drawer systems, dual batteries, long-range fuel tanks (empty weight), rear bars, spare wheel carriers, and any other fixed equipment. It's crucial to select spring rates based only on constant load — do not factor in occasional loads like camping gear, passengers, or cargo, as selecting springs that are too stiff will result in harsh ride quality and potential damage to other suspension components. Our suspension experts can help you calculate your constant load and recommend the optimal spring rate for your specific setup and intended use.

These rear coil springs alone provide minimal lift (primarily restoring factory height under load) and therefore don't significantly increase tyre clearance on your Prado 120 Grande. If you're currently running factory tyre sizes (typically 265/65R17), these springs will maintain that clearance capacity. For fitting larger tyres such as 265/70R17 or 285/70R17, you'll need a complete lift kit that raises both front and rear suspension, potentially combined with body mount chop or guard modifications depending on desired tyre size. The Prado 120 Series can accommodate modest tyre size increases with proper suspension lift and minor trimming, but rear spring replacement alone won't provide the clearance needed for significantly larger rubber. Contact our team to discuss complete lift kit options if increased tyre clearance is your primary goal.

Toughdog rear coil springs are backed by the manufacturer's comprehensive warranty covering defects in materials and workmanship under normal use conditions. The specific warranty period and terms are provided with your springs upon purchase and typically cover several years depending on the product line. Warranty coverage requires professional installation by a qualified mechanic, proper spring rate selection for your application, and maintenance of other suspension components in good working order. The warranty does not cover damage from accidents, improper installation, overloading beyond vehicle specifications, or fitting incorrect spring rates for your actual load requirements. Keep your proof of purchase and installation documentation to support any warranty claims. Contact us for complete warranty details specific to your purchase.

Absolutely — these Toughdog rear coil springs are engineered to deliver excellent ride quality for daily driving while providing the load capacity needed for touring and towing applications. When the correct spring rate is selected for your constant accessory load, you'll experience comfortable on-road manners similar to or better than factory springs, with improved control and reduced body roll during cornering. The progressive spring rate design ensures the springs compress smoothly over bumps and road imperfections during unladen daily driving, then provide firm support when loaded with gear or towing. Many Prado 120 Grande owners report improved ride quality compared to worn factory springs, with better handling, reduced rear sag, and more confidence-inspiring road manners. These springs excel at the dual-purpose role of comfortable daily driver and capable weekend tourer.