There is a several problems that could be causing this, you either have bad calipers, or the proportioning valve is malfunctioning, the proportioning valves is connected to the frame with a lever going to the rear suspension, it balances out the brake pressure depending upon the load in the back of the truck if the truck is empty it will apply more pressure to the front brakes, if the truck is loaded it will apply more pressure to the rear, the linkage connected to the proportioning valve may have been damaged due to going off the road, check the proportioning valve then Jack up the front, make sure the wheels spin freely with no resistance let me know what you find out.
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Friday, July 31st, 2009 AT 11:05 PM