I found a small stash of NOS/possibly NOS takeoff Mopar brake booster check valves. Part #4271382 superseded from 3420973 which was found on the 1970-71 boosters. This check valve has two ports on top of the valve like the 2 & 4 barrel cars used, and also one port out the front of the valve like the T/A & AAR used. These are being listed on ebay for $90 each from other sellers. I'm pricing them at $50 plus shipping from Brick NJ 08724.
