South Gate Assembly
Coordinates: 33°56′43″N 118°13′27″W / 33.9454059°N 118.2241301°W South Gate Assembly was a General Motors automobile plant located in the Los Angeles suburb of South Gate, California. It opened in 1936 to build B-O-P (Buick-Olds-Pontiac) cars for sale on the west coast. It was the first GM plant to build multiple car lines, resulting from a Depression-spawned move to cut production costs by sharing components and manufacturing. South Gate was the second of several B-O-P "branch" assembly plants (the first being the Buick-operated Linden plant), part of GM's strategy to have production facilities in major metropolitan cities. The location was under the management of GM's newly created Buick-Oldsmobile-Pontiac Assembly Division created in 1945.
It was located at 2720 Tweedy Boulevard, South Gate, California.
These "branch" plants would build cars for distribution to a specific region. By 1949 it was producing full size cars from the Chevrolet, Pontiac, Oldsmobile, Buick and Cadillac brands. During the mid-1950s it was General Motors' highest-output plant. Vehicles included the Oldsmobile 98, Pontiac Streamliner, Buick Special, and the Cadillac Series 61.
It added production of the Pontiac Tempest, Oldsmobile F-85, and Buick Special alongside the fullsize cars for 1961. When the compacts became intermediates for 1964 their production ceased at South Gate, and Chevrolet Impala fullsize production was added, after the Buick-Oldsmobile-Pontiac Assembly Division was renamed GM Assembly Division (GMAD) in 1965.
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