I'm a brake technician, and my the guest a lot of problems of the resistance point of brake pedal, I had repair the 4Runner calipers,the oil seal is very dirty,the piston is stuck,and the dust boots are broken,even the bleeding screw is rusty,but now, I have a lot of for 4Runner's Brake caliper repair kit,if you wants the repair kit,you can and me say,my Gmail is [email protected].