My documentation shows that side mount being available from 1953 inwards?
That is correct Tim.
The first year that the side mount carrier was offered as an option was 1953.
It is interesting to note that the GMC ad also makes reference to the carrier directly fitting the 1951 & 1952 models & it was "adaptable" to fit the 1947-1950 models.
In any event....the side carrier was not offered until 1953.
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