Finally had time to inspect the rear brakes and emergency brake. First I pulled the emergency brake handle and found it barely moved. That led me to backing off the emergency brake, that made no difference. Removed both rear wheels and found the right rear had been dragging. I backed off both rear brake adjustments and checked the emergency brake handle movement and it came out much farther. A test drive yielded a minor lock up on the right rear. It might be time to change the rear wheel cylinders as they are 27 years old and may be hanging up. Unless someone has a better next step, that is what I will try next.
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