On our 04 Escape with 78k on the odo I'm guessing has had the brake pads replaced at one point. We got with 32K or 36K so it must of been done just before we bought it. If you know Escapes they tend to have soft rotors. The brake pads I'm guessing has 50-60% maybe more left. The only problem is the passenger side rotor is extremely thin, yes you can tell, compared to the driver side. It doesn't pull and never has and no pulsating. Although before flushing a couple years ago took alot more effort to stop, rear brakes had alot of junk in them. Did the brake flush again yesterday and found it. Why one and not both is strange maybe one was turned? Would it be okay to just replace the one rotor? I know ABS can be picky.