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Disc Brake Specifications

DISC BRAKE ROTOR SPECIFICATIONS

Application In. (mm)
E250/350, 4WD F250 & 2WD F250 over 6800 GVW 
Disc Diameter ..........
Lateral Runout (1) 0.010 (0.25)
Parallelism 0.001 (0.03)
Original Thickness 1.25 (31.8)
Min. Refinish Thickness 1.21 (30.7)
Discard Thickness 1.18 (29.9)
F100 4600 GVW w/Power Brakes 
Disc Diameter ..........
Lateral Runout (1) 0.010 (0.25)
Parallelism 0.001 (0.03)
Original Thickness 0.98 (24.9)
Min. Refinish Thickness 0.94 (23.9)
Discard Thickness 0.81 (20.6)
Ranger 
Disc Diameter ..........
Lateral Runout (1) 0.010 (0.25)
Parallelism 0.001 (0.03)
Original Thickness 0.93 (23.8)
Min. Refinish Thickness 0.87 (22.1)
Discard Thickness (2)
All Others 
Disc Diameter ..........
Lateral Runout (1) 0.010 (0.25)
Parallelism 0.001 (0.03)
Original Thickness 1.19 (30.2)
Min. Refinish Thickness 1.15 (29.2)
Discard Thickness 1.12 (28.4)
(1) Specifications given are for separate hub and rotor. With integral hub and rotor assembly: 0.003" (0.08 mm)
(2) Minimum safe thickness is stamped on each rotor.