Replacing only one rotor--good idea or bad idea?
I am fixing the 4-piston front disc brakes on the 67. The driver's side rotor was turned and is ready to be installed. The passenger side rotor can't be resurfaced again (not thick enough) and was covered with brake fluid/minor surface rust that I have cleaned off. I would like to be able to reinstall it and use it with the resurfaced driver's side rotor.
That said, I've read that it is recommended that rotors be replaced in pairs so that the surfaces are identical and the pads grab evenly. If this is accurate, then I have no option but to buy two new matched rotors.
Otherwise, I've read, one side may grab more than the other and cause a pull to one side. That would even rule out using the resurfaced rotor with a brand new rotor on the other side. I don't know if all of this is just marketing from the manufacturers of the rotors or the truth.
What do you all advise? Any reason you can see why I can't install both of these rotors "as is" and just use them? I'd think that unless one had a lot more friction than the other, there wouldn't be that much of a difference in the two...ultimately won't the pads grab evenly...especially once they grind on the rotor a few hundred revolutions?