Decided I had better get the truck in and have the whole brake system looked over. Took her to the trusty brake/muffler shop I've been using for 20+ years. They tear in to her and find the following:
- left front caliper sticking...inside brake pad worn to nothing
- right front caliper newer, pads seem okay
- left rear drum cylinder/brakes rusted...NO braking power at all from this wheel
- right rear cylinder leaking, no brakes there either
- rear brakes lines really rusty
- neads rear seals
So I'm glad I took her in for the work. Getting new calipers & pads, new master cylinder & rear wheel cylinders, turn rear drums and new shoes back there.
Also taking out the line-lock and replacing some rusted brake lines in rear. I'm guessing the bill will be around $900 when I'm finished. Looking forward to a vehicle that has good stopping power.
Can't believe I had only the front brakes all this time. No wonder my stopping distance was so lo-o-o-o-o-o-o-ng.