is airbag suspension legal in qld?
Straight from the QLD Transport modification hand book Lowering or raising of vehicles The road clearance of a fully laden vehicle must not be less than 100mm measured at any part of the vehicle other than the wheel rim or brake backing plates. (This does not apply where a lesser clearance has been specified by the manufacturer.) When lowering or raising a vehicle body (front or rear), the following additional restrictions are based on the manufacturer's dimensions for the standard unmodified vehicle while unladen: ? The ride height measured between the rubber bump stop and the corresponding metal stop may be reduced by no more than one third. ? The rebound travel measured between the rubber rebound stop and the corresponding metal stop (or the extension of the shock absorber for vehicles without a rebound stop) may be reduced by no more than one third. ? Coil springs are to remain in locating seats on full suspension droop without forcibly being removed. In addition, the normal relationship between the front and rear suspension heights must not be unduly affected. Replacement springs (shorter or taller) must have the same or greater load capacity as the original springs. Suspension coil springs must not be shortened by cutting or heating. Leaf spring suspensions must not be raised by the use of extended shackles, adjustable metal plates or by placing the leaf springs to the opposite side of the axle. If lowering blocks are used, they must be either steel or aluminium. Airbag or air pressurised shock absorber helper springs may be fitted in addition to the original suspension. However, replacing some or all of the suspension system with an air or hydraulic suspension requires specific approval. In short. you need a modification plate
