I started getting a pulsation noise at 39,000 miles. I had replaced the front with new rotors and new pads, so I’m thinking the backs are the problem. Sure enough new pads and turned the rotors, and just like new again.
I had vibrations every time I would brake, 38,000 miles on truck. Took it to the brake shop, attendant said I still had some brake pad left. I said replace and turn rotors, I change front rotors and pads earlier. No more vibrations, like brand new again.