I need a reaction disc out of an early master vac brake booster. Anyone got an old brake booster that they could dig one out for me. Happy to pay for your effort and postage. Thanks Guy

Found a reaction disc.....thanks PJOE. I removed the two nuts holding the brake master cylinder to the master vac.....then pulled the master cylinder back 4 to 5 inches. I shined a light in the master vac and sure enough, the reaction disc was absent. I epoxied the disc to the adjustable plunger and pushed it back in. It's raining, so I haven't test drove her yet, but there's absolutely no question that the disc is what made the brakes work a little funny. Hope this helps someone else.