thoughts and personal trials i had breaks pulling befor i up graded my fron calipers and rotors and found it to be a sticky caliper on the right that coused it to pull to the left cuz >>the right caliper sticky and would not clamp rotor with same force as the left side couseing left side to break harder than right test it by having friends wife ect >>>slowly apply break wile u look at bolth removed calipers and see if one moves easyer than the other then put block of wood in between caliper that moves easy and see how much presure it takes to move sticky caliper all with engine off so it can be felt for real and so u can tell helper when to stop ect . hope this helps shannon
ps. loaded calipers are cheap in cal about 80 a piece cheap stopping insurance hit me up pm if u need more asistance or would like to know more about my upgrades experiance !