For 1-1/8" bore master cylinder.

Cadillac 1936: 70,75,80,85. 1937-40: 75 & 90 models.

Buick    1936:  60,60c,80,80c,90

Railton  1936-47 st8 with Wagner 1-1/8" bore, casting No.FD4480

Sayers-Scovill truck 1936: BL, BM.

Cross ref: GM 5450477