On the level of production, the move from Fordism to post-Fordism involves a shift from mass production of homogeneous goods to small batch customization, that is, from uniformity and standardization to flexible, variable production for niche markets.
Source: wiktionary
According to Marxist economist Christian Marazzi, the switch from Fordism to post-Fordism can be given a very specific date: October 6, 1979. It was on that date that the Federal Reserve increased interest rates by 20 points, preparing the way for the ‘supply-side economics’ that would constitute the ‘economic reality’ in which we are now enmeshed.
Source: wiktionary