Home › CDL Practice Tests › General Knowledge Questions › Question 228
What does a torque rod (radius rod) do, and what happens when its bushings are badly worn?
- A.It connects the steering wheel to the axle
- B.It is a decorative brace with no load
- C.It measures engine torque for the dashboard
- D.It keeps the axle aligned under acceleration and braking forces; worn bushings let the axle twist and wander
Correct answer
D. It keeps the axle aligned under acceleration and braking forces; worn bushings let the axle twist and wander
Why
Drive and brake forces try to rotate the axle housing, and torque rods resist that twist while holding alignment. Slop in the rods shows up as clunks, wander, and rapid tire wear that no alignment alone can cure.
Manual topic: Suspension - Torque Rods · From the General Knowledge practice bank (GK-228).