I would replce at about 4mm to keep the pad from comming off the backing plate and causing damage.
It is the safe and legal minimum thickness allowed for a brake rotor.
The 2001 Pontiac Grand Am minimum brake rotor thickness is .075. The minimum brake rotor thickness is a standard minimum. Certified mechanics cannot use the brake rotor when the thickness drops below this level.
There is a legal minimum thickness for all rotors.
2004 ford explorer minimum rotor thickness
The minimum rear brake rotor thickness on a 1996 Lexus LS400 is 15mm.
The minimum front brake rotor thickness is three aids of an inch. When the rotor does not have the minimum thickness the auto mechanic replacing the brakes can not use the rotor.
The minimum disc brake rotor thickness specifications for the 2006 Lexus GS are:Front: 27mmRear: 16.5mm
The minimum thickness number should be cast into the rotor.
It depends if 4 WD or just FWD and what year model Generally: FRONT: Brake pad minimum thickness 3.0 mm (0.118 inch) Brake pad maximum taper wear (in any direction) 3.0 mm (0.118 inch) Brake disc minimum thickness (disc-drum system) 22 mm (0.866 inch) Brake disc minimum thickness (4-wheel disc brake system) 24 mm (0.944 inch) REAR: Brake Pad Brake pad minimum thickness 3.0 mm (0.118 inch) Brake pad maximum taper wear (in any direction) 3.0 mm (0.118 inch) Brake Disc Brake disc minimum thickness 11.0 mm (0.433 inch)
The minimum brake rotor thickness for a 2002 Mitsubishi Eclipse is 1.17 inches. When it falls below this thickness, braking performance will suffer and must be replaced.
It is important to maintain your brakes properly. The minimum brake rotor thickness for a 2003 Ford Ranger is 0.99 inches.
The minimum disc brake rotor thickness specifications for the 2006 Lexus GS are:Front: 27mmRear: 16.5mm