In the early 1950's, when tag axles began to gain popularity, it became evident that they frequently caused traction problems. In an effort to address this problem, a company was started in Sioux City, Iowa in 1956. This company's answer to the problem was to produce large pulleys and install them between the dual tires of the drive axle and the tag axle. By connecting them with a large V-belt, the drive axle powered the tag axle.
Power on the Road from Silent DriveSince the tag axle was powered by silent belts instead of noisy gears, the company was named Silent Drive.
By 1972, when Silent Drive was purchased by the present owner, suspension lifts were already edging out V-belt drives in the marketplace. Silent Drive was already producing axle lifts -- both hydraulic and air. Expanding products meant an expanded facility. In 1974 a facility was constructed in Orange City, Iowa. All operations were moved to the new facility at that time.
