A tire changing tool comprising a tool body, a ram, a ram actuator, a clamp arm, and a clamp actuator. The tool body is comprised of a housing, a lateral bracket, and first and second holding feet. The ram is comprised of a ram body and a ram base comprised of first and second opposed ram feet. The ram body is removable from an inner cavity of the housing, and is rotatable and replaceable in the inner cavity of the housing. Prior to fitting the tool to the tire and wheel for its intended use, the position of the ram base may selected between a first position in which the first ram foot extends laterally outwardly a first distance between the first and second holding feet, or a second position in which the second ram foot extends laterally outwardly a second distance between the first and second holding feet.