Hi Sparky,
Thanks for the reply. After reading my post, I should make it clearer that my left brake seems to be working OK but the right is grabbing. The master cylinder was down in fluid, which I topped off, but looking carefully under (Haven't pulled the drums yet-) shows no fluid leaking.
The tool I mentioned is the small prybar looking item which is poked thru the brake backing plate slot to turn the notched wheel on the brake cylinder adjusting screws.
Am trying to get safely driveable to where I can get into the wheel and master cylinders. Can pull drums where I am, but not easily.(small airport in the woods).
Best, Bill