A professional who aligns wheels, axles, frames, torsion bars, and steering mechanisms of automotive vehicles, such as automobiles, buses, and trucks. Respnsibilities include:

• Drives automotive vehicle onto wheel alignment rack and tests vehicle for faulty wheel alignment, bent axle, worn ball joints, and bent steering rods, using alignment-testing machine.
• Straightens axle and steering rods and adjusts shims, tie rods, and joining pins to align wheels, or installs new parts, using handtools.
• Places wheel on balancing machine to determine where counterweights must be added to balance wheel.
• Hammers counterweights onto rim of wheel.
• Installs shock absorbers.
• Straightens frame, using hydraulic jack, chassis aligner, and acetylene torch.