After completing the replacement with series 103 on the Keihanshin Local Line, JNR replaced in August 1976 an extra tailer car disjoined at Takatsuki Depot with a Tc transferred from Keihin Tohoku Line to Morinomiya Tram Depot which was converted to an air-conditioned car at the time of transfer.
103系化後の京阪神緩行線は、1976年8月に高槻バラ予備のT1両を森ノ宮電車区に転属してきた京浜東北線のTc（入線時に冷房改造済み）に差し替えた。