Finally took off the front passenger side caliper, got new ones , and installed both sides. While the wheels were off, I tried to remove play (it was about 45 degrees total, or 8 inches?) from the steering wheel... Half turn of adjustment screw did the trick.. did the rear cylinders last week. Tried to bleed the brakes and the calipers barely grabbed the rotors.. the dual master cylinder is old, and I need a proportion valve and residual valves, may just replace it. Still gotta rewire the truck, replace rear main seal, adjust valves, check timing.... Maybe next year.