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Upper & Lower Control Arm Bushes Holden HZ WB RTS - kRTS-U-L_Ctrl

Upper & Lower Control Arm Bushes Holden HZ WB RTS - kRTS-U-L_Ctrl

Regular price $107.27 AUD
Regular price Sale price $107.27 AUD
Sale Sold out
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If your Holden HZ or WB is starting to feel vague through the steering or unsettled under brakes, worn inner control arm bushes are often to blame. The Upper & Lower Inner Control Arm Bushes kit replaces the critical rubber pivot points that connect both the upper and lower front suspension arms directly to the engine crossmember (K-Frame).


  • Premium Silentbloc Construction: Incorporates an internal metal crush sleeve chemically bonded to a high-density vulcanised rubber core and outer shell, ensuring strength, durability and correct suspension articulation.

  • Radial Tuned Suspension Damping: Calibrated to match original RTS (Radial Tuned Suspension) geometric parameters, delivering optimal compliance for cornering side-loads while preventing excessive harshness from transferring into the chassis and steering column.

  • Anti-Torsional Slip Bond Technology: The bonded rubber-to-metal design prevents the bush from spinning, deforming or tearing under heavy articulation, ensuring long-term reliability and consistent suspension behaviour.

  • Quantity Supplied:

2 x Lower Control Arm Bushes RTS (Identified by 3 distinctive rubber outer knobs/nibs on the flange for correct positioning and orientation during installation.)

2 x Lower Control Arm Bushes

4 x Upper Control Arm Bushes


For a proper front suspension refresh on your Holden, the Upper & Lower Inner Control Arm Bushes kit delivers the balance of control, comfort and reliability needed to keep your classic tracking straight, steering true and driving the way it should.
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