I have a 97 explorer awd, it goes through brake pads and runs calipers in a matter of weeks. I've changed pads at least 6 times and I've also changed the calipers, the rear calipers twice now.
Sounds like hydraulic pressure to the calipers is not being released when the foot is off the brake. Check the master cylinder operation and the power brake system for proper operation.
How are the calipers being damaged?
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