Self-Changing Gears Ltd was a British company, set up and owned equally by Walter Gordon Wilson and John Davenport Siddeley to develop and exploit the Wilson or pre-selector gearbox.

Self-Changing Gears designed, built and licensed transmissions for various applications including light and heavy road vehicles, military, marine, and rail vehicles as well as motor racing cars.

Following the death of Walter Wilson in 1957, his son A.Gordon Wilson took over the running of the company until his retirement in 1965.

The original company Improved Gears Ltd was incorporated on 28 December 1928, and this later became Self-Changing Gears. The company moved a number of times in the early years, and in 1938 settled in premises at Lythalls Lane, Coventry. During the war, additional premises were used at Burbage, Leicestershire.

In 1935, J D Siddeley sold his interests in Armstrong-Siddeley motors (including Self-Changing Gears) to Hawker Aircraft forming the Hawker Siddeley Group. In 1951 Leyland Motors Ltd bought into the company, resulting in each party owning one-third of the company, and in 1957 Leyland bought-out Hawker-Siddeley's shares in the company, thereby gaining control.

See alsoEdit

References / sourcesEdit

External linksEdit

Smallwikipedialogo This page uses some content from Wikipedia. The original article was at Self-Changing Gears Limited. The list of authors can be seen in the page history. As with Tractor & Construction Plant Wiki, the text of Wikipedia is available under the Creative Commons by Attribution License and/or GNU Free Documentation License. Please check page history for when the original article was copied to Wikia

Start a Discussion Discussions about Self-Changing Gears Limited

  • I am after a workshop manual

    • Hi there, I am after a lead on getting my hands on a workshop manual for a GA5 gearbox that we have in one of several of our Brill railcars h...
  • Working at SCG Burbage and Coventry

    4 messages
    • Hi Rod We have Complete Leyland GB350 Pneumo-cyclic  SGC (Self Changing Gearboxes) and their parts . If you are interested please let...
    • Hello kumar I have a SCG MFR 350 Gearbox on my Volvo penta. But my clutch is bad. Can you help....? Please mail me on
Community content is available under CC-BY-SA unless otherwise noted.