The fall of colonial regimes across Africa was accompanied by the rise in expectations for rapid and inclusive rural economic progress. In Zambia, the cooperative production unit was one of two key initiatives at the centre of the United National Independence Party's ambitious development efforts. The other was the tractor. By following these two interlinked initiatives in the years immediately following independence, this article contributes to the under-explored history of early postcolonial development. It argues that both the power of expert groups and the level of continuity between late colonial and postcolonial development was not always as great as has recently been suggested. Cooperative mechanization policies emerged from a confluence of competing claims over knowledge, power and resources. However, as is demonstrated, they also reflected more fundamental tensions in the development endeavour between the prioritization of economically efficient mass production, and inclusive development for the masses.