WAS BACKING DOWN PART OF MY DRIVEWAY WHICH IS FAIRLY STEEP. WHEN REACHING POINT WHERE WANTED TO STOP, BRAKE PEDAL WOULD NOT BUDGE SO 2004 FORD RANGER CONTINUED ROLLING BACKWARDS UNTIL HITTING TREE IN ITS PATH. IT STOPPED THEN! DAMAGE WAS $4,000 AND SOME. TRUCK IS LESS THAN A YEAR OLD WITH A LITTLE MORE THAN 12,000 MILES USE. FORD SAID COULDNT FIND ANYTHING WRONG WITH BRAKES. BODY SHOP REPAIRED BED.