My 88 Dakota is really hard to push in the staging lane. Was told i need new front callipers. Does anyone know if the stock callipers hold a few pounds of pressure on the pads even when your foot is off the peddal. Also running a 8 3/4 with spool with a 904. I jack up the rear and the rear tires are really hard to turn with the rear brakes backed off. Any ideas. Thanks