I have a 2000 Ram 4X4. Front disc, rear drum. The brakes are always just fine...good stopping, good pedal...unless it rains. If its rainy weather weather the front brakes will lock up, you have to baby it to get it not to lock up and do a nose dive. Even if you apply the brake slowly, nose dive time and you can hear the front tires slide. It is ONLY during wet weather and ONLY during the first couple minutes of taking off (only time it happens is in my parking lot at work). Once you get on the road...no problems. Have never had to do any brake work for the year and a half thatI have owned the truck. Any ideas? Thanks.