Rotor Thickness - Service Limit

[Mendari]

Does anyone know the factory recommendation for the minimum thickness of the front brake rotors for a 1997 Explorer?
I've have GOOGLE'd it all day, but I can't find the answer.

[way2old]

Hope this helps. From Ford.


Item Specification
Brake Rotor
Minimum Rotor Thickness 4x2 (Discard Thickness) mm (in) 24.5 (0.96)
Minimum Rotor Thickness 4x4 (Disc and Thickness) mm (in) 24.5 (0.96)
Brake Fluid
High Performance DOT3 Brake Fluid
C6AZ-19542-AB or DOT3 ESA-M6C25-A, DOT3
Lubricant
Premium Long-Life Grease XG-1-C or-K ESA-M1C75-B
Brake Shoe and Lining
Minimum Thickness mm (in) 3 (0.125)
Cleaners
Metal Brake Parts Cleaner F3AZ-19579-SA N/A



Torque Specifications Description Nm Lb/Ft Lb/In
Anti-Lock Brake Sensor Bolt 10-14 — 89-124
Brake Hose Bolt 30-40 23-29 —
Front Axle Hub Nut 255-345 188-253 —
Front Disc Brake Caliper Anchor Plate Bolts 170-230 125-170 —
Front Disc Brake Caliper Slide Pins 28-36 21-26 —
Front Disc Brake Rotor Shield Bolts 10-14 — 89-124
Lug Nuts 135 100 —

[mkee]

I'm planning to have my rotor removed and turned, the chilton manual recommends replacing the hub nut and washer for a new one before doing this job. With your experience is this necessary? And is the hub nut torque 157-213 ft.lbs? Thanks

[way2old]

We have done it both ways. If part is going to be a while in coming to shop, we will re use the old one. However, the nut is a locking type and when it is removed, you take some of the locking ability away.