Toughdog Rear Suspension & Lift Kit for Mazda BT50 2020+ — Complete Upgrade

This Toughdog rear kit provides approximately 25-40mm of rear lift depending on the leaf spring rate selected and your vehicle's constant accessory load. Vehicles with lighter constant loads and comfort springs will achieve lift closer to the 40mm range when unloaded, while those selecting 300kg or 500kg constant load springs will see around 25-30mm of lift to accommodate heavier permanent accessories. The actual lift achieved will vary based on your specific load configuration, with the primary goal being to restore level stance when loaded rather than maximising lift height. It's important to note that rear lift should be balanced with appropriate front suspension to maintain proper vehicle geometry and handling characteristics.

This comprehensive Toughdog rear kit includes everything needed for a complete rear suspension upgrade: two heavy-duty rear shock absorbers engineered specifically for the BT50 2020+ platform, a pair of multi-leaf rear springs available in your choice of comfort/medium or constant 300kg/500kg load ratings, a complete rear spring u-bolt kit with all necessary hardware for secure mounting, and a full rear spring bush kit with premium bushes for all mounting points. The kit includes detailed installation instructions and spring rate selection guidance. Note that this is a rear-only kit — front suspension components including struts and raised coil springs are available separately if you're looking for a complete vehicle lift.

Absolutely — this Toughdog rear suspension kit is excellent for BT50 owners who regularly tow caravans, camper trailers, boats, or heavy work trailers. The upgraded leaf springs with optional 300kg or 500kg constant load ratings dramatically reduce or eliminate rear sag when towing, maintaining proper weight distribution and preventing dangerous porpoising that can occur with factory suspension under heavy tongue weight. The Toughdog rear shocks are specifically valved to control compression and rebound when loaded, improving stability, braking performance, and driver confidence when towing. For the ultimate towing setup, many customers pair this rear kit with airbag suspension for on-demand adjustability based on variable trailer weights.

Control arm upgrades are generally associated with front suspension modifications rather than rear, as the BT50 uses a live axle rear suspension with leaf springs rather than independent suspension with control arms. However, when installing this rear lift kit, it's important to ensure your front suspension is appropriately matched to maintain level vehicle stance and proper suspension geometry across the entire vehicle. If you're experiencing excessive lift disparity between front and rear, or if you plan to install significant front lift in the future, ensuring all suspension geometry is correct becomes critical for handling, tyre wear, and safety. Our suspension experts can advise on complete vehicle suspension packages that maintain optimal geometry.

Yes, a full four-wheel alignment is absolutely mandatory after installing this rear suspension kit. While rear leaf spring suspension primarily affects rear axle positioning rather than individual wheel alignment like independent front suspension, the installation process can affect rear axle alignment, thrust angle, and overall vehicle tracking. Proper alignment ensures the rear axle is correctly positioned relative to the chassis and front axle, prevents premature and uneven tyre wear, maintains predictable handling characteristics, and ensures your BT50 drives straight without pulling to one side. The alignment should be performed after installation and after the initial 500km break-in period once the springs have fully settled to their final position.

Yes, selecting different spring rates for front and rear is not only possible but recommended based on where you carry constant loads on your BT50. This rear-specific kit allows you to select from comfort/medium springs or constant 300kg/500kg load-rated springs based on your rear accessory weight — such as canopies, tool boxes, drawer systems, or tray bodies. Your front suspension spring rate should be selected independently based on front constant loads like bull bars, winches, long range fuel tanks, and heavy-duty batteries. The key principle is matching each end of the vehicle to its actual constant load rather than selecting matching rates front and rear. Many tradespeople, for example, require heavy-duty rear springs for tools and equipment but only medium front springs.

This rear suspension kit provides 25-40mm of rear lift which contributes to improved clearance for slightly larger tyres, though tyre fitment is primarily determined by front suspension lift, guard clearance, and wheel offset. With this rear kit and appropriate front suspension upgrades, most BT50 2020+ owners can comfortably fit tyres in the 265/70R17 to 275/65R18 range without significant modifications, representing an increase from the factory tyre sizes. Going beyond these sizes may require guard trimming, body lift, or wheel offset changes. It's important to remember that larger tyres affect gearing, speedometer accuracy, fuel consumption, and braking performance, and any significant size increase should be accompanied by speedometer recalibration. Consult with our team about your specific tyre size goals for personalised advice.

This Toughdog rear suspension kit is backed by the manufacturer's comprehensive warranty covering defects in materials and workmanship, giving you peace of mind in your investment. Toughdog's warranty terms vary by component type, with shock absorbers and leaf springs each carrying specific coverage periods that protect against manufacturing defects under normal use conditions. To maintain warranty coverage, the kit must be installed by a qualified mechanic or suspension specialist, the vehicle must undergo proper wheel alignment after installation, and the components must be used within their designed load and application parameters. Warranty claims are handled efficiently through our network, and we're here to assist with any warranty questions or concerns throughout your ownership.

Yes, when properly matched to your constant load, this Toughdog rear suspension kit is excellent for daily driving, highway cruising, and comfortable long-distance touring. Toughdog specifically engineers their suspension to balance off-road capability with on-road comfort, unlike some competition-focused brands that sacrifice daily drivability for extreme performance. The key to maintaining comfortable daily driving is selecting the correct spring rate based on your actual constant load — choosing overly heavy springs will result in a harsh ride when unloaded. With proper spring selection, most BT50 owners report improved ride quality compared to sagging factory suspension, better handling under all load conditions, and confident highway stability even when towing or carrying heavy loads in the tray.