Rear

Rear Brake Disc
F-250 & F-350
Minimum thickness 32.4 mm (1.27 inch)
Minimum thickness to machine 33.0 mm (1.29 inch)
F-450 & F-550
Minimum thickness 37.4 mm (1.47 inch)
Minimum thickness to machine 38.0 mm (1.49 inch)