Removed from my truck tonight. The photo on the left is exactly what I saw when I pulled the wheel off. A few weeks ago, I had the dealer check the brakes for a grinding noise and got an all-clear!!!

The right brake was perfectly good, plenty of pad left and rotor in good shape.

Replaced both, took about 1.5 hours.

Check those brakes!

hope you replaced the rotors to...

Nah, I figured it has just been "turned"......

LMAO All you gotta do now is switch the pads around so the other side "Turns" itself!

Keep an eye on it its odd for one side to wear that much more than the other. Could be a bad brake hose (collapsed) or just corrosion were the caliper slides that was not allowing it to return.

Ouch, is that on a Ford? Had a very similar issue with an F250 7.3L one day. Even the caliper needed replacing after that.

its only bad if you need to stop,the scarry thing is a dealer said it was good to go,usually they will tell you the brakes are shot,even if they are new.

Something else caused that wear. Need to find out what or it will just happen again.

Caliper could be sticking, etc.

If it's a Ford you need to lube the caliper hardware/slide at least once a year. More often if your backing in the water. I lube all four caliper slides twice a year,or every time I rotate the tires.