Uneven rotor wear

[twigfield]

I have a 96 explorer with 260,000. I have replaced brake pads about eight times and rotors a couple of times. For the last year I have had soft pedel. Truck stops OK but not great. Previoulsy I have bled lines and replaced vacumm booster. No help. Later, I noticed my rotors are only wearing on the outside edge of rotors (both sides-not pad sticking). The interior of both sides of rotor (area closest to center hole) is rusted and has flaking metal. I replaced pads and rotors and no improvement. Could it be that my calipers have spread so that the pads are not hitting rotors parrallel? This is the only thing I can think of that would cause the uneven wear. Pad wear is even on outside and inside pads but wear uneven from top of pad to bottom. Thanks for input.

 

[my pos mounty]

Sounds like it could need new caliper slide pins. The kit is about $30 if i recall correctly.
If that does not correct the problem, replace the calipers. The kit is the bolts the caliper slides on and the rubber boots that go on the caliper.

 

[96eb96]

the master could have a slight internal leak causing a bit of a soft pedal. I don't know if you replaced it with the booster.