pow-a-rak var-a-matic serv-a-rak bevel boxes direct sales sub-contract work A variable ratio worm and roller box type of power steering gear. The variable worm enables fewer turns to full lock, and sensitive control in the straight-ahead position. These features provide superior control off road whilst still maintaining a high degree response in normal road conditions. A precision engineered rotary control valve, interposed between the worm and input shaft regulates and directs the amount of power assistance required. Many of its features can easily be tailored to individual customer requirements, on-centre detent, speed sensitive option, turning circle, hydraulic characteristics – feel, installation configuration, etc. This type of steering gear is supplied to Land Rover, London Taxis International, several overseas customers and specialist manufacturers. Var-a-matic Steering Gear