Check suspension components

• U-bolts or other spring to axle or spring pack clamp bolts, centre bolts, spring eyes or hangers, torque, radius or tracking component assemblies, control arms, bushes or any parts used to attach them to the vehicle frame or axle are cracked, loose, broken, missing or worn beyond manufacturers’ limits;

• Any "walking beam" type heavy vehicle suspension has signs of damage to beam;

• Springs are cracked, broken or missing;

• Air bags leak or sag;

• Leaves in a leaf spring are displaced sideways more than 10% of their width or so that they contact wheels, brakes or the frame;

• Shock absorbers, if originally fitted, are missing, loose, inoperative or leak;

• Any suspension component is not correctly aligned or is damaged, loose or broken;

• Any nut, bolt or locking mechanism is insecure or missing.