This study utilizes a QuantCrit framework to accomplish three goals: (1) describe a curricular and pedagogical redesign of teacher education courses grounded in social justice teaching (SJT), (2) discuss a Critical Social Justice Teaching instrument we used to measure attitudes and behaviors of preservice teachers (PSTs) as a result of these changes, and (3) present a quasi-experimental analysis to show changes in PSTs' CSJ dispositions following engagement in our redesigned coursework and teaching efforts. Significant changes in PSTs' CSJs' dispositions were observed after completion of a single redesigned course and increased minimally after completing additional courses. However, changes were related to PSTs' identity characteristics including race, gender, and religious practice.