Silver Eagle Manufacturing Company started in 1936, when founder Julius Gaussoin developed and manufactured a full front trailer suspension unit to deploy in his own trucking fleet.
Until 1969, the trucking and manufacturing operations were contained within one company. In 1969, they split into Silver Eagle Company (trucking) and Silver Eagle Manufacturing Company, under a common parent, Silver Eagle Industries. Manufacturing had become more than a sidebar activity, and room was needed to let it grow. However, linking the companies under a common parent allowed Manufacturing to keep close ties to its primary customer: the trucking industry.