I’m going to. Im replacing all pads and rotors (motorcraft). My only concern was if this was caused by a sticking piston and if I don’t address the piston the new set of pads would also wear out prematurely. But now it appears the excess surface rust cause the inner pad to wear out to nothing not a piston?That rotor is literally grinding your brake pads into dust!!! TOSS IT !
Got it. Thank youWhen everything is replaced with new drive it for a week pull tire off and inspect, you should be able to tell if pads are contacting rotor, if rotor looks as if it is not getting swept with brake pads you will know ,then replace caliper!
Just to be clear when I check it in about a week I’ll want to ensure that the pad is contacting the rotor and leaving a lapped surface. However, how do I ensure the brake pads aren’t hanging up due to a sticking piston and prematurely wearing the pads? Do I just try to rotate the rotor to ensure it spins freely? If it doesn’t spin freely does that mean the piston is sticking and keeping pads clamped onto the rotor?When everything is replaced with new drive it for a week pull tire off and inspect, you should be able to tell if pads are contacting rotor, if rotor looks as if it is not getting swept with brake pads you will know ,then replace caliper!
When I reloaded pads on my Wife's subaru rear rotors at 89K miles, one inner pad was chewed off. The pad backing plate ears were somwhat rusted and likely too large and jammed the pad against the rotor. Those were budget duralast pads. The new ones did not fit well either, I ended up filing the ears down so they would easily slide on the stainless shims on the caliper. And yes, I wire brushed the rust off the notch behind the shims on the caliper- which can cause the pads to get jammed, otherwise.Just to be clear when I check it in about a week I’ll want to ensure that the pad is contacting the rotor and leaving a lapped surface. However, how do I ensure the brake pads aren’t hanging up due to a sticking piston and prematurely wearing the pads? Do I just try to rotate the rotor to ensure it spins freely? If it doesn’t spin freely does that mean the piston is sticking and keeping pads clamped onto the rotor?