Front rotors 99 Blazer 4x4 4 whell disc.


What's the min thickness before replacing?


They are in good shape if you wanted to know.

1.086 is minimum machine to thickness. If thickness is 1.085 or less, it makes a nice anchor for a small boat!

The Minimum thickness should be stamped somewhere on the rotor. Most places like Autozone have thicker standards that will not allow the rotors to be turned that don't go anywhere near the Minimum thickness. I have bought brand new Rotors and had them take a .005 True up cut and the manager told me that the rotor was now technically below their Corporate limit and could never be cut again.

I tend to go with the number stamped on the rotor.