No doubt with feedback provided by teams, NASCAR is going to allow teams to change front brake pads and rotors after practice and qualifying on Saturday at Phoenix Raceway.
Specifically, the following policy change was issued to teams on Wednesday.
At Phoenix Raceway, Teams will be given the option to remove and replace Front Brake Rotors and Pads only, following P/Q on Saturday. No other ...Keep reading

Source: NASCAR to allow brake rotor and pad changes after Phoenix qualifying