hi all --- 87 k5 silverado, 305 TBI, 700r4, np08, corp 10 bolt 3.1, 32x10.5x15. I've recently bled the brakes, replaced the shoes on the rear, replaced the rotors, calipers and pads up front, and pressure checked all of the lines at the cylinders. Brake lines are good. I orignally started work on the fronts b/c the right caliper would drag and/or lock up from time to time... Things have gotten better but I still have a problem. During easy to moderate braking, the truck does fine. But if I start to put my foot down (either abruptly or gradually increasing) she'll pull. Mostly to the right but either way. Worse when pulling a trailer (5000# boat with surge brakes). I have to turn the steering wheel about 60 degrees in the most extreme pulls. It's just a bit disconcerting when you start a panic stop because some idiot decides he absolutely must turn right now and damn near jumping into another lane. any thoughts? wheel bearings fried from caliper seizure? truck trying to follow the ruts in shitty ass mississippi roads?