2011-2023 GM HD Supersteer Idler Arm Support (210-90775)Looseness or Steering Play in some vehicle steering systems can often be attributed to a component known as a bell crank or idler, which supports the steering linkage. Features Improved Returnability Rugged high strength casting, steel spindle and tapered roller bearings Also reduces steering road wander and rut tracking Helps to eliminate Steering Play extends tire life Bolt in replacement for the original component Limited Lifetime Warranty Reduces