When inspecting axle alignment devices, which parts are reviewed?

• A. Radius Rods and Stabilizer Bars.
• B. Tie Rod Ends.
• C. Wheel Cylinders.
• D. Axle Shafts.

Answer: (A)

Axle alignment devices focus on keeping the axle properly located and oriented relative to the vehicle frame. Radius rods (radius arms) and the stabilizer bar are the parts that directly set and maintain that position. Radius rods control the axle’s fore-and-aft location, which affects toe and tracking, while the stabilizer bar helps stabilize the axle during turns and under load, preventing side-to-side movement that could shift alignment. When inspecting, you’d look for worn bushings, loose mounts, bent or damaged arms, and worn stabilizer links, since any excessive play or deformation can throw off alignment. The other components listed aren’t part of axle positioning: tie rod ends relate to steering geometry, wheel cylinders are brake components, and axle shafts are part of the drive assembly, not the alignment setup.