I'm wondering what the negative affects may be if I were to only change one rotor when doing a brake job. I am asking because a friend needs to have their brakes done right now, because one side went to metal (I think). They don't have money for two new rotors, nor can they wait until the weekend to see about turning them.
Thanks for the info.

 

Been there,done that.Not a problem.Just sand the glaze off the old rotor,it will be fine.