I have two customers with pulsating brakes issues. Both have been to others before me and both have had me install new fronts and turn the rears. In both cases the pulsating returned after a few months. In the one case I just repaired the rears were warped and non turnable. Replacing the rears solved the problem again. I tried to figure out why I have 133K on my rotors and they are having problems after a few months. the calipers are releasing just fine. they are getting better life from their pads than I am, because I drive a lot of city miles with over size tires and heavy extra goodies, ( and a fat ass driver) . They are generally a LOT easier on their 80s than I am. What do they do differently than I do? I noticed when I picked up her truck today. i beleive the issue is caused by Chicago area weather and Toyota weird engineering. Anybody got a guess?