forgive me if this issue has been beat to death already

ok just replaced both rotors and pads on the 94 Z28 my kid drives. Everything went well but in test driving it developed a squealing from both sides in turns. Slight or hard turning produces a squeal and I can’t figure out why. Everything is assembled correctly and I paid special attention to cleaning and relubing the sliders.
Can anyone help?
Much appreciated
Dan B