Ford Repair: 1991 Ford Explorer Brakes, rear shoes, rear brakes

Question
"I have replaced the front brake pads/rotors/caliper multiple times after less than 5K miles.  I even took the vehicle to a mechanic who stated that the problem was being caused by a "gunked" up RABS valve which I had him replaced along with the rear shoes and drums turned, only to have the brakes wear out again....in less than 2K miles and no visable wear on the rear brakes.  What else could be causing this?  This also seems to be evident on a 1990 Ford Ranger with the same setup."

Answer
sorry this is not a common problem-if it is/was gunked up then brake fluid must be contaminated and even a small amount of residue will cause it to keep doing this but this vehicle needs to be taken to a dealer. or a very rebutable garage for a second opinion-if contamination is the problem it could get expensive. good luck