I know many that questions are here for this brake pad/rotor , but I have a different case.
I felt a medium steering wheel vibration when braking at high speeds (above 100 kph), no pedal shaking and I had some small noise (maybe cause the pads were dry)
So I checked the brake pads & found they still have maybe quarter of their life but they were dry (weather here is too hot), after replacing the pads , no noise except a very small sound (normal braking sound) but I still get some vibration from the steering wheel on braking.
On replacing the pads, the mechanic didn't replace the brake shims with the new ones & said the OEM (GM) shims are better than AC delco (that I got) but I have serious doubt on that.
The rotors look good, with very slight grooves (like small scratches) but I thought better not to resurface them to avoid ruining them soon.
The question here could this be from the shims ? do I need to wait for some time for the pads to match the rotors? since I got no pedal vibrations & rotors look good I feel I shouldn't resurface & maybe the shims are causing this.
Any advice please ?