TAS Steering Gear Service Manual - TRW Aftermarket

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through the recirculating ball mechanism, tries to move the rack piston axially through the gear housing cylinder bore. The rack piston's axial movement is resisted by its engagement to the sector shaft, which is connected by linkage to the steered wheels. Because of this resistance, the torsion bar is twisted by the input shaft,

  Ball, Recirculating, Recirculating ball